### Home > A2C > Chapter Ch4 > Lesson 4.1.2 > Problem 4-21

4-21.

Solve for in each equation below.

Rewrite both sides of the equation so they have the same base. Now the exponents must be equal. Write an equation and solve for

.

Follow the steps in part (a). Notice that both

and can be rewritten as powers of .

Follow the steps in part (a).

Get all the terms on one side of the equation, factor, and use the Zero Product Property.