QUESTION IMAGE
Question
simplify the following expression by combining like radicals.
\\14\sqrt{7} - \sqrt{175}\\
\\?\sqrt{\quad}\\
<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
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"concepts_used": [
"Simplifying Radicals",
"Combining Like Radicals"
],
"new_concepts": [],
"current_concepts": [
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"Combining Like Radicals"
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</pre_analysis>
<reasoning>
Simplify the second radical term
\[
\sqrt{175} = \sqrt{25 \times 7} = \sqrt{25} \times \sqrt{7} = 5\sqrt{7}
\]
Combine the like radical terms
\[
14\sqrt{7} - 5\sqrt{7} = (14 - 5)\sqrt{7} = 9\sqrt{7}
\]
</reasoning>
<answer>
Simplify the following expression by combining like radicals.
\(14\sqrt{7} - \sqrt{175}\)
<blank>\(9\sqrt{7}\)</blank>
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Simplifying Radicals"
]
}
</post_analysis>
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<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Simplifying Radicals",
"Combining Like Radicals"
],
"new_concepts": [],
"current_concepts": [
"Simplifying Radicals",
"Combining Like Radicals"
]
}
</pre_analysis>
<reasoning>
Simplify the second radical term
\[
\sqrt{175} = \sqrt{25 \times 7} = \sqrt{25} \times \sqrt{7} = 5\sqrt{7}
\]
Combine the like radical terms
\[
14\sqrt{7} - 5\sqrt{7} = (14 - 5)\sqrt{7} = 9\sqrt{7}
\]
</reasoning>
<answer>
Simplify the following expression by combining like radicals.
\(14\sqrt{7} - \sqrt{175}\)
<blank>\(9\sqrt{7}\)</blank>
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Simplifying Radicals"
]
}
</post_analysis>