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OpenStudy (anonymous):
simplify the radical expression sqrt21y x 5sqrt49y ?
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OpenStudy (anonymous):
the x is meant to be a multiplication sign
OpenStudy (kc_kennylau):
\[\sqrt{21y}*5\sqrt{49y}=5\sqrt{21y*49y}=5y*7\sqrt{21}=35y\sqrt{21}\]
OpenStudy (anonymous):
want to help with more?:)
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