How do you simplify $sqrt(8y^3)-sqrt(2y^3)$ ?

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Answer 1 · 2015-11-22T19:45:14

$ysqrt(2y)$

$sqrt(8y^3)-sqrt(2y^3)$

Factor $sqrt{y^3}=sqrt(y^2*y)=ysqrty$

$=ysqrty*(sqrt(8)-sqrt{2})$

Simplify $\sqrt{8}=sqrt(4*2)=2sqrt2$ :

$=ysqrty*(2\sqrt{2}-sqrt{2})$

$=ysqrty*sqrt{2}$

$=ysqrt{2y$

How do you simplify sqrt(8y^3)-sqrt(2y^3)sqrt(8y^3)-sqrt(2y^3)?