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simplify the following expression. \\((10d + 6)(10d - 6)\\) \\(?d^2 - \…

Question

simplify the following expression.

\\((10d + 6)(10d - 6)\\)

\\(?d^2 - \quad\\)

Explanation:

Response

<pre_analysis>
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"concepts_used": [
"Multiplying Binomials"
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"new_concepts": [
"Difference of Squares"
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</pre_analysis>

<reasoning>

Identify the algebraic structure

Using the Multiplying Binomials knowledge point
\[
(10d + 6)(10d - 6)
\]

Apply the difference of squares formula

Using the Multiplying Binomials knowledge point
\[
(a+b)(a-b) = a^2 - b^2
\]
\[
(10d)^2 - 6^2
\]

Simplify the squared terms

Using the Multiplying Binomials knowledge point
\[
(10d)^2 = 100d^2
\]
\[
6^2 = 36
\]
\[
100d^2 - 36
\]
</reasoning>

<answer>
Simplify the following expression.

\[(10d + 6)(10d - 6)\]

<blank>100</blank>\(d^2 -\) <blank>36</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Difference of Squares"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"tutor",
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],
"needs_drawing": false,
"concepts_used": [
"Multiplying Binomials"
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"new_concepts": [
"Difference of Squares"
],
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"Multiplying Binomials",
"Difference of Squares"
]
}
</pre_analysis>

<reasoning>

Identify the algebraic structure

Using the Multiplying Binomials knowledge point
\[
(10d + 6)(10d - 6)
\]

Apply the difference of squares formula

Using the Multiplying Binomials knowledge point
\[
(a+b)(a-b) = a^2 - b^2
\]
\[
(10d)^2 - 6^2
\]

Simplify the squared terms

Using the Multiplying Binomials knowledge point
\[
(10d)^2 = 100d^2
\]
\[
6^2 = 36
\]
\[
100d^2 - 36
\]
</reasoning>

<answer>
Simplify the following expression.

\[(10d + 6)(10d - 6)\]

<blank>100</blank>\(d^2 -\) <blank>36</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Difference of Squares"
]
}
</post_analysis>