91Ó°ÊÓ

Simplify each expression.

$\left(−\mathbf{2}{u}^3\right)\left(\mathbf{5}u\right)$

MULTIPLE CHOICE Antonia is carpeting two of the rooms in her house. The dimensions are shown. What is the total area to be carpeted?

F$x^2+\mathbf{3}x$

G$\mathbf{2}{x}^2+\mathbf{6}x−\mathbf{10}$

H$x^2+\mathbf{3}x−\mathbf{5}$

J$\mathbf{8}x+\mathbf{12}$

The formula for the surface area of a cube is$SA=6s^2$where SAis the surface area and s is the length of any side.

a. Express the surface area of the cube as a monomial.

b. What is the surface area of the cube if $a=3$and $b=4$?

Simplify each expression.

${\left(\mathbf{2}{x}^2\right)}^3{\left(x^3\right)}^3$

Simplify the expression

${\left(5x^{2}y\right)}^2{\left(2x{y}^{3}z\right)}^3\left(4xyz\right)$

Express each number in standard form.

$\mathbf{3}\mathbf{×}{\mathbf{10}}^{\mathbf{9}}$

Find the area or volume of each.

Find each product.

$a\left(a^2+\mathbf{2}a−\mathbf{10}\right)$

Simplify each expression.

$\frac{1}{2}{\left(\mathbf{2}{x}^3\right)}^3$

Simplify the expression

${\left(−3d^2{f}^{3}g\right)}^2{\left[{\left(−3d^{2}f\right)}^3\right]}^2$