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Question

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question

divide: \\(\frac{x^2-4x-32}{-x^2-7x-12}\\)

provide your answer below:

Explanation:

Response

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"quality": "clear",
"question_count": 1,
"skills_matched": [
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"needs_drawing": false,
"concepts_used": [
"Factoring Trinomials",
"Simplifying Rational Expressions"
],
"new_concepts": [
"Dividing Rational Expressions"
],
"current_concepts": [
"Factoring Trinomials",
"Simplifying Rational Expressions",
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]
}
</pre_analysis>

<reasoning>

Factor the numerator trinomial

Using the Factoring Trinomials knowledge point
\[
x^2 - 4x - 32 = (x - 8)(x + 4)
\]

Factor the denominator trinomial

Using the Factoring Trinomials knowledge point
\[
-x^2 - 7x - 12 = -(x^2 + 7x + 12) = -(x + 3)(x + 4)
\]

Simplify the rational expression

Using the Simplifying Rational Expressions knowledge point
\[
\frac{x^2 - 4x - 32}{-x^2 - 7x - 12} = \frac{(x - 8)(x + 4)}{-(x + 3)(x + 4)} = \frac{x - 8}{-(x + 3)} = -\frac{x - 8}{x + 3} = \frac{8 - x}{x + 3}
\]
</reasoning>

<answer>
Divide: \(\frac{x^2-4x-32}{-x^2-7x-12}\)

Provide your answer below:
<blank>\(-\frac{x-8}{x+3}\)</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Simplifying Rational Expressions"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
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"step_cot",
"blank_filling_formatter",
"explain_then_answer",
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"needs_drawing": false,
"concepts_used": [
"Factoring Trinomials",
"Simplifying Rational Expressions"
],
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],
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"Factoring Trinomials",
"Simplifying Rational Expressions",
"Dividing Rational Expressions"
]
}
</pre_analysis>

<reasoning>

Factor the numerator trinomial

Using the Factoring Trinomials knowledge point
\[
x^2 - 4x - 32 = (x - 8)(x + 4)
\]

Factor the denominator trinomial

Using the Factoring Trinomials knowledge point
\[
-x^2 - 7x - 12 = -(x^2 + 7x + 12) = -(x + 3)(x + 4)
\]

Simplify the rational expression

Using the Simplifying Rational Expressions knowledge point
\[
\frac{x^2 - 4x - 32}{-x^2 - 7x - 12} = \frac{(x - 8)(x + 4)}{-(x + 3)(x + 4)} = \frac{x - 8}{-(x + 3)} = -\frac{x - 8}{x + 3} = \frac{8 - x}{x + 3}
\]
</reasoning>

<answer>
Divide: \(\frac{x^2-4x-32}{-x^2-7x-12}\)

Provide your answer below:
<blank>\(-\frac{x-8}{x+3}\)</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Simplifying Rational Expressions"
]
}
</post_analysis>