BinguTop BinguTop

03-03-2017
Mathematics

Answered

Need to simplify cube roots, work shown would be great!

Cube root of 81

Cube root of -64

Verified Answer :

LammettHash LammettHash

03-03-2017

\(81=9^2=(3^2)^2=3^4\implies \sqrt[3]{81}=\sqrt[3]{3^4}=\sqrt[3]{3\times3^3}=3\sqrt[3]3\)

\(-64=(-4)^3\implies\sqrt[3]{-64}=\sqrt[3]{(-4)^3}=-4\)

Answer Link

sebiz101 sebiz101

03-03-2017

1.) 4.32
2.)-4
copy the work on square root calculator

Answer Link

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