Question 385893
{{{3*sqrt(98)*sqrt(32)}}}
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{{{3*sqrt(3*7^2)*sqrt(2^5)}}}
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{{{3*7*sqrt(2)*2^2*sqrt(2)}}}
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{{{21*sqrt(2)*4*sqrt(2)}}}
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{{{4*21*sqrt(2)*sqrt(2)}}}
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{{{4*21*2}}}
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168
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