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combine these radicals. (-12\\sqrt{12} - 2\\sqrt{3}) - (-50\\sqrt{3}) -…

Question

combine these radicals.

(-12\sqrt{12} - 2\sqrt{3})

  • (-50\sqrt{3})
  • (-22\sqrt{3})
  • (-26\sqrt{3})
  • (-10\sqrt{12})

Explanation:

Response

<pre_analysis>
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"quality": "clear",
"question_count": 1,
"skills_matched": [
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"explain_then_answer",
"quick"
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"concepts_used": [],
"new_concepts": [
"Simplifying Radicals",
"Combining Like Radicals"
],
"current_concepts": [
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"Combining Like Radicals"
]
}
</pre_analysis>

<reasoning>

Simplify the first radical term

\[
-12\sqrt{12} = -12\sqrt{4 \cdot 3} = -12 \cdot 2\sqrt{3} = -24\sqrt{3}
\]

Combine the like radical terms

\[
-24\sqrt{3} - 2\sqrt{3} = (-24 - 2)\sqrt{3} = -26\sqrt{3}
\]
</reasoning>

<answer>
<mcq-option>(A) \(-50\sqrt{3}\)</mcq-option>
<mcq-option>(B) \(-22\sqrt{3}\)</mcq-option>
<mcq-correct>(C) \(-26\sqrt{3}\)</mcq-correct>
<mcq-option>(D) \(-10\sqrt{12}\)</mcq-option>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Simplifying Radicals"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [],
"new_concepts": [
"Simplifying Radicals",
"Combining Like Radicals"
],
"current_concepts": [
"Simplifying Radicals",
"Combining Like Radicals"
]
}
</pre_analysis>

<reasoning>

Simplify the first radical term

\[
-12\sqrt{12} = -12\sqrt{4 \cdot 3} = -12 \cdot 2\sqrt{3} = -24\sqrt{3}
\]

Combine the like radical terms

\[
-24\sqrt{3} - 2\sqrt{3} = (-24 - 2)\sqrt{3} = -26\sqrt{3}
\]
</reasoning>

<answer>
<mcq-option>(A) \(-50\sqrt{3}\)</mcq-option>
<mcq-option>(B) \(-22\sqrt{3}\)</mcq-option>
<mcq-correct>(C) \(-26\sqrt{3}\)</mcq-correct>
<mcq-option>(D) \(-10\sqrt{12}\)</mcq-option>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Simplifying Radicals"
]
}
</post_analysis>