Question

Perform the indicated operations and write the result in standard form.

Answer 1

$5\sqrt[]{-36}+7\sqrt[]{-9}$

write the numbers as imaginary numbers

$5\sqrt[]{36}i+7\sqrt[]{9}i$

simplify the roots

$\begin{gathered} 5\cdot6\cdot i+7\cdot3\cdot i \\ 30i+21i \\ 51i \end{gathered}$