Question

Help with these

Answer 1

\[ 5\sqrt{-64} \]\[\sqrt[3]{x ^{5}}\]

Answer 2

simplify

Answer 3

\[5 \sqrt{-64}=5 \sqrt{-1{\times 64}}=5\times \sqrt{-1}\times \sqrt{64}=5\times 8 \times \sqrt{\iota^2}=40 \iota .\]
\[\sqrt[3]{x^5}=x ^{\frac{ 5 }{ 3 }}=x ^{1+\frac{ 2 }{ 3 }}=x^1 \times x ^{\frac{ 2 }{ 3 }} =x *x ^{\frac{ 2 }{ 3 }}\]