Help me simplify this, please!!

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asked Jun 24, 2018 76.2k views

4 votes

Help me simplify this, please!!

Mathematics
high-school

Sandbox asked

by Sandbox

8.3k points

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1 Answer

2 votes

$- \sqrt[3]{2 x^(4) y^(2) } *3 \sqrt[3]{20 x^(5)y } =-3 \sqrt[3]{2 x^(4) y^(2)20 x^(5)y} = \\ \\ =-3 \sqrt[3]{40 x^(9) y^(3) } =-3 \sqrt[3]{2 ^(3)*5* x^(9) y^(3) } = \\ \\ =-3*2 ^{ (3)/(3) } * x^{ (9)/(3) } * y^{ (3)/(3) } \sqrt[3]{5} =-6 x^(3) y \sqrt[3]{5}$
Answer: B.

Eric Stdlib answered Jul 1, 2018