Which Expression Is Equivalent To $100 N^2-1$?A. $(10 N) 2-(1) 2$ B. $\left(10 N 2\right) 2-(1)^2$ C. $ ( 50 N ) 2 − ( 1 ) 2 (50 N)^2-(1)^2 ( 50 N ) 2 − ( 1 ) 2 [/tex] D. $\left(50 N 2\right) 2-(1)^2$

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Introduction

In mathematics, algebraic expressions are used to represent various mathematical operations and relationships. One of the fundamental concepts in algebra is the difference of squares, which is a common technique used to simplify and manipulate expressions. In this article, we will explore the concept of difference of squares and apply it to find the equivalent expression for 100n21100 n^2-1.

Understanding the Difference of Squares

The difference of squares is a mathematical formula that states:

a2b2=(a+b)(ab)a^2 - b^2 = (a + b)(a - b)

This formula can be used to simplify expressions that involve the subtraction of two squares. To apply this formula, we need to identify the two squares and then factor them using the difference of squares formula.

Applying the Difference of Squares Formula

Let's apply the difference of squares formula to the given expression 100n21100 n^2-1. We can rewrite 100n2100 n^2 as (10n)2(10 n)^2 and 11 as (1)2(1)^2. Now, we can use the difference of squares formula to simplify the expression:

100n21=(10n)2(1)2100 n^2-1 = (10 n)^2-(1)^2

This expression is equivalent to the difference of squares formula, where a=10na = 10 n and b=1b = 1.

Evaluating the Options

Now, let's evaluate the given options to determine which one is equivalent to 100n21100 n^2-1.

Option A: $(10 n)2-(1)2$

As we have already shown, this expression is equivalent to 100n21100 n^2-1.

Option B: $\left(10 n2\right)2-(1)^2$

This expression is not equivalent to 100n21100 n^2-1 because it involves squaring 10n210 n^2, which is not the same as squaring 10n10 n.

Option C: $(50 n)2-(1)2$

This expression is not equivalent to 100n21100 n^2-1 because it involves squaring 50n50 n, which is not the same as squaring 10n10 n.

Option D: $\left(50 n2\right)2-(1)^2$

This expression is not equivalent to 100n21100 n^2-1 because it involves squaring 50n250 n^2, which is not the same as squaring 10n10 n.

Conclusion

In conclusion, the expression that is equivalent to 100n21100 n^2-1 is:

(10n)2(1)2(10 n)^2-(1)^2

This expression can be simplified using the difference of squares formula, which states that a2b2=(a+b)(ab)a^2 - b^2 = (a + b)(a - b). By applying this formula, we can simplify the expression and find its equivalent form.

Final Answer

The final answer is:

(10 n)^2-(1)^2$<br/> **Q&A: Which Expression is Equivalent to $100 n^2-1$?** =====================================================

Introduction

In our previous article, we explored the concept of difference of squares and applied it to find the equivalent expression for 100n21100 n^2-1. We also evaluated the given options to determine which one is equivalent to 100n21100 n^2-1. In this article, we will provide a Q&A section to further clarify any doubts and provide additional information on the topic.

Q: What is the difference of squares formula?

A: The difference of squares formula is a mathematical formula that states:

a^2 - b^2 = (a + b)(a - b) </span></p> <p>This formula can be used to simplify expressions that involve the subtraction of two squares.</p> <h2><strong>Q: How do I apply the difference of squares formula?</strong></h2> <p>A: To apply the difference of squares formula, you need to identify the two squares and then factor them using the formula. For example, if you have the expression <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>100</mn><msup><mi>n</mi><mn>2</mn></msup><mo>−</mo><mn>1</mn></mrow><annotation encoding="application/x-tex">100 n^2-1</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8974em;vertical-align:-0.0833em;"></span><span class="mord">100</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.6444em;"></span><span class="mord">1</span></span></span></span>, you can rewrite <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>100</mn><msup><mi>n</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">100 n^2</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8141em;"></span><span class="mord">100</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span> as <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mn>10</mn><mi>n</mi><msup><mo stretchy="false">)</mo><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">(10 n)^2</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1.0641em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">10</span><span class="mord mathnormal">n</span><span class="mclose"><span class="mclose">)</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span> and <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>1</mn></mrow><annotation encoding="application/x-tex">1</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6444em;"></span><span class="mord">1</span></span></span></span> as <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mn>1</mn><msup><mo stretchy="false">)</mo><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">(1)^2</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1.0641em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">1</span><span class="mclose"><span class="mclose">)</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span>. Then, you can use the difference of squares formula to simplify the expression:</p> <p class='katex-block'><span class="katex-display"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><semantics><mrow><mo stretchy="false">(</mo><mn>10</mn><mi>n</mi><msup><mo stretchy="false">)</mo><mn>2</mn></msup><mo>−</mo><mo stretchy="false">(</mo><mn>1</mn><msup><mo stretchy="false">)</mo><mn>2</mn></msup><mo>=</mo><mo stretchy="false">(</mo><mn>10</mn><mi>n</mi><mo>+</mo><mn>1</mn><mo stretchy="false">)</mo><mo stretchy="false">(</mo><mn>10</mn><mi>n</mi><mo>−</mo><mn>1</mn><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(10 n)^2-(1)^2 = (10 n + 1)(10 n - 1) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1.1141em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">10</span><span class="mord mathnormal">n</span><span class="mclose"><span class="mclose">)</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8641em;"><span style="top:-3.113em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:1.1141em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">1</span><span class="mclose"><span class="mclose">)</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8641em;"><span style="top:-3.113em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">10</span><span class="mord mathnormal">n</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord">1</span><span class="mclose">)</span><span class="mopen">(</span><span class="mord">10</span><span class="mord mathnormal">n</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord">1</span><span class="mclose">)</span></span></span></span></span></p> <h2><strong>Q: Why is option B not equivalent to <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>100</mn><msup><mi>n</mi><mn>2</mn></msup><mo>−</mo><mn>1</mn></mrow><annotation encoding="application/x-tex">100 n^2-1</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8974em;vertical-align:-0.0833em;"></span><span class="mord">100</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.6444em;"></span><span class="mord">1</span></span></span></span>?</strong></h2> <p>A: Option B is not equivalent to <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>100</mn><msup><mi>n</mi><mn>2</mn></msup><mo>−</mo><mn>1</mn></mrow><annotation encoding="application/x-tex">100 n^2-1</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8974em;vertical-align:-0.0833em;"></span><span class="mord">100</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.6444em;"></span><span class="mord">1</span></span></span></span> because it involves squaring <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>10</mn><msup><mi>n</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">10 n^2</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8141em;"></span><span class="mord">10</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span>, which is not the same as squaring <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>10</mn><mi>n</mi></mrow><annotation encoding="application/x-tex">10 n</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.6444em;"></span><span class="mord">10</span><span class="mord mathnormal">n</span></span></span></span>. When you square <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>10</mn><msup><mi>n</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">10 n^2</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8141em;"></span><span class="mord">10</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span>, you get <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mn>10</mn><msup><mi>n</mi><mn>2</mn></msup><msup><mo stretchy="false">)</mo><mn>2</mn></msup><mo>=</mo><mn>100</mn><msup><mi>n</mi><mn>4</mn></msup></mrow><annotation encoding="application/x-tex">(10 n^2)^2 = 100 n^4</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1.0641em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">10</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mclose"><span class="mclose">)</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:0.8141em;"></span><span class="mord">100</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">4</span></span></span></span></span></span></span></span></span></span></span>, which is not the same as <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mn>100</mn><msup><mi>n</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">100 n^2</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8141em;"></span><span class="mord">100</span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8141em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span>.</p> <h2><strong>Q: Can I use the difference of squares formula to simplify any expression?</strong></h2> <p>A: Yes, you can use the difference of squares formula to simplify any expression that involves the subtraction of two squares. However, you need to make sure that the expression can be factored using the formula.</p> <h2><strong>Q: What are some common mistakes to avoid when applying the difference of squares formula?</strong></h2> <p>A: Some common mistakes to avoid when applying the difference of squares formula include:</p> <ul> <li>Squaring the wrong terms</li> <li>Not identifying the two squares</li> <li>Not factoring the expression correctly</li> <li>Not checking if the expression can be simplified using the difference of squares formula</li> </ul> <h2><strong>Q: How can I practice using the difference of squares formula?</strong></h2> <p>A: You can practice using the difference of squares formula by working on exercises and problems that involve simplifying expressions using the formula. You can also try to come up with your own examples and see if you can simplify them using the formula.</p> <h2><strong>Conclusion</strong></h2> <p>In conclusion, the difference of squares formula is a powerful tool that can be used to simplify expressions that involve the subtraction of two squares. By understanding how to apply the formula and avoiding common mistakes, you can become proficient in using it to simplify expressions. We hope that this Q&amp;A section has provided additional information and clarification on the topic.</p> <h2><strong>Final Answer</strong></h2> <p>The final answer is:</p> <p class='katex-block'><span class="katex-display"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><semantics><mrow><mo stretchy="false">(</mo><mn>10</mn><mi>n</mi><msup><mo stretchy="false">)</mo><mn>2</mn></msup><mo>−</mo><mo stretchy="false">(</mo><mn>1</mn><msup><mo stretchy="false">)</mo><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">(10 n)^2-(1)^2 </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1.1141em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">10</span><span class="mord mathnormal">n</span><span class="mclose"><span class="mclose">)</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8641em;"><span style="top:-3.113em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:1.1141em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord">1</span><span class="mclose"><span class="mclose">)</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8641em;"><span style="top:-3.113em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span></span></p>