Edkowiez2x

2022-02-01

How do you evaluate the expression for

Rihanna Lester

Beginner2022-02-02Added 12 answers

Step 1

For each of these you substitute the value for x in the expression.

Solve for$x=-2$

$2}^{-2$

We can use this rule for exponents to rewrite this problem:

$x}^{a}=\frac{1}{{x}^{-a}$

$2}^{-2$

$\frac{1}{{2}^{--2}}$

$\frac{1}{{2}^{2}}$

$\frac{1}{4}$

Step 2

Solve for$x=3$

$2}^{3$

$2\times 2\times 2$

$=8$

For each of these you substitute the value for x in the expression.

Solve for

We can use this rule for exponents to rewrite this problem:

Step 2

Solve for