QUESTION IMAGE
Question
simplify the expression.
\\\sqrt{28}\\
\\\sqrt{28} = \square\\
(type an exact answer, using radicals as needed.)
<pre_analysis>
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"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
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"needs_drawing": false,
"concepts_used": [
"Product Rule for Radicals",
"Square Root Properties"
],
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"current_concepts": [
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"Square Root Properties",
"Simplifying Radicals"
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</pre_analysis>
<reasoning>
Find the largest perfect square factor
Using the Square Root Properties knowledge point
\[
28 = 4 \times 7
\]
Apply the product rule for radicals
Using the Product Rule for Radicals knowledge point
\[
\sqrt{28} = \sqrt{4 \times 7} = \sqrt{4} \times \sqrt{7}
\]
Simplify the square root of the perfect square
Using the Square Root Properties knowledge point
\[
\sqrt{4} = 2 \implies \sqrt{28} = 2\sqrt{7}
\]
</reasoning>
<answer>
Simplify the expression.
\(\sqrt{28} =\) <blank>\(2\sqrt{7}\)</blank>
(Type an exact answer, using radicals as needed.)
</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",
"tutor",
"mastery_adaptive_brevity"
],
"needs_drawing": false,
"concepts_used": [
"Product Rule for Radicals",
"Square Root Properties"
],
"new_concepts": [],
"current_concepts": [
"Product Rule for Radicals",
"Square Root Properties",
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]
}
</pre_analysis>
<reasoning>
Find the largest perfect square factor
Using the Square Root Properties knowledge point
\[
28 = 4 \times 7
\]
Apply the product rule for radicals
Using the Product Rule for Radicals knowledge point
\[
\sqrt{28} = \sqrt{4 \times 7} = \sqrt{4} \times \sqrt{7}
\]
Simplify the square root of the perfect square
Using the Square Root Properties knowledge point
\[
\sqrt{4} = 2 \implies \sqrt{28} = 2\sqrt{7}
\]
</reasoning>
<answer>
Simplify the expression.
\(\sqrt{28} =\) <blank>\(2\sqrt{7}\)</blank>
(Type an exact answer, using radicals as needed.)
</answer>
<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Simplifying Radicals"
]
}
</post_analysis>