QUESTION IMAGE
Question
factor the following binomial.
\\49x^2 - 144\\
\\((?x + \quad)(\quadx - \quad)\\)
<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"tutor",
"mastery_adaptive_brevity"
],
"needs_drawing": false,
"concepts_used": [
"Difference of Squares"
],
"new_concepts": [],
"current_concepts": [
"Difference of Squares",
"Quadratic Factoring"
]
}
</pre_analysis>
<reasoning>
Identify the binomial structure
Using the Difference of Squares knowledge point
\[
49x^2 - 144 = (7x)^2 - (12)^2
\]
Apply the factoring formula
Using the Difference of Squares knowledge point
\[
a^2 - b^2 = (a + b)(a - b)
\]
\[
(7x)^2 - (12)^2 = (7x + 12)(7x - 12)
\]
Determine the missing values
Using the Difference of Squares knowledge point
\[
([7]x + [12])([7]x - [12])
\]
</reasoning>
<answer>
Factor the following binomial.
\(49x^2 - 144\)
(<blank>7</blank>\(x +\) <blank>12</blank>)(<blank>7</blank>\(x -\) <blank>12</blank>)
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Difference of Squares"
]
}
</post_analysis>
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<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"tutor",
"mastery_adaptive_brevity"
],
"needs_drawing": false,
"concepts_used": [
"Difference of Squares"
],
"new_concepts": [],
"current_concepts": [
"Difference of Squares",
"Quadratic Factoring"
]
}
</pre_analysis>
<reasoning>
Identify the binomial structure
Using the Difference of Squares knowledge point
\[
49x^2 - 144 = (7x)^2 - (12)^2
\]
Apply the factoring formula
Using the Difference of Squares knowledge point
\[
a^2 - b^2 = (a + b)(a - b)
\]
\[
(7x)^2 - (12)^2 = (7x + 12)(7x - 12)
\]
Determine the missing values
Using the Difference of Squares knowledge point
\[
([7]x + [12])([7]x - [12])
\]
</reasoning>
<answer>
Factor the following binomial.
\(49x^2 - 144\)
(<blank>7</blank>\(x +\) <blank>12</blank>)(<blank>7</blank>\(x -\) <blank>12</blank>)
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Difference of Squares"
]
}
</post_analysis>