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OpenStudy (anonymous):
Simplify √405 - 3√45?
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OpenStudy (acxbox22):
\[\sqrt{405}=\sqrt{81\times5}=9\sqrt{5}\] \[-3\sqrt{45}=-3\sqrt{9\times5}=-9\sqrt{5}\] \[9\sqrt{5}-9\sqrt{5}=???\]
OpenStudy (anonymous):
Thank you! @acxbox22
OpenStudy (acxbox22):
anytime
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