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OpenStudy (anonymous):
Simplify. square root of 3 times square root of 21 square root of 24 square root of 63 3 square root of 7 None of the above
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OpenStudy (anonymous):
@lizz123
Nnesha (nnesha):
\[\sqrt{3} \times \sqrt{21}\] multiply both numbers
Nnesha (nnesha):
3 times 21 = ??
OpenStudy (anonymous):
63 @Nnesha
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Nnesha (nnesha):
yes but under square root \[\sqrt{63}\] now you have to factor this
OpenStudy (anonymous):
the answer is c???
Nnesha (nnesha):
|dw:1422830916413:dw|square root of 9 is 3 so yes
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