91Ó°ÊÓ

In the following exercises, simplify.

$$\begin{gathered} \left(a\right)\sqrt[3]{-512} \\ \left(b\right)\sqrt[4]{-81} \\ \left(c\right)\sqrt[5]{-1} \end{gathered}$$

In the following exercises, simplify.

a.$\sqrt{96d^9}-\sqrt{24d^9}$

b.$5\sqrt[4]{243s^6}+2\sqrt[4]{3s^6}$

In the following exercises, simplify.

$3\sqrt{128y^2}+4y\sqrt{162}-8\sqrt{98y^2}$

In the following exercises, simplify.

a.$(-2\sqrt{3})\left(3\sqrt{18}\right)$

b.$\left(8\sqrt[3]{4}\right)(-4\sqrt[3]{18})$

In the following exercises, simplify.

a.$(-4\sqrt{5})\left(5\sqrt{10}\right)$

b.$(-2\sqrt[3]{9})\left(7\sqrt[3]{9}\right)$

In the following exercises, simplify.

a.$\left(5\sqrt{6}\right)(-\sqrt{12})$

b.$(-2\sqrt[4]{18})(-\sqrt[4]{9})$

In the following exercises, simplify.

a.$(-2\sqrt{7})(-2\sqrt{14})$

b.$(-3\sqrt[4]{8})(-5\sqrt[4]{6})$

In the following exercises, simplify.

a.$\left(4\sqrt{12z^3}\right)\left(3\sqrt{9z}\right)$

b.localid="1645792347411" $\left(5\sqrt[3]{3x^3}\right)\left(3\sqrt[3]{18x^3}\right)$

In the following exercises, simplify.

a.$\left(3\sqrt{2x^3}\right)\left(7\sqrt{18x^2}\right)$

b.$\left(-6\sqrt[3]{20a^2}\right)\left(-2\sqrt[3]{16a^3}\right)$

In the following exercises, simplify.

a.$\left(-2\sqrt{7z^3}\right)\left(3\sqrt{14z^8}\right)$

b.$\left(2\sqrt[4]{8y^2}\right)\left(-2\sqrt[4]{12y^3}\right)$