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OpenStudy (anonymous):
sqrt 3 times sqrt 21 equals?
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OpenStudy (anonymous):
\[\sqrt{3} \times \sqrt{21} = sqrt{63}\]
OpenStudy (anonymous):
Sorry, \[\sqrt{3} \times \sqrt{21} = \sqrt{63}\]
OpenStudy (hoblos):
\[3\sqrt{7}\]
OpenStudy (anonymous):
\[\sqrt{3} \times \sqrt{21} = \sqrt{21 \times 3} = \sqrt{63}\]
OpenStudy (anonymous):
3squareroot7
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OpenStudy (anonymous):
\[3\sqrt{7}\]
OpenStudy (anonymous):
\[\sqrt{3\sqrt{7?}}\]
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