### Home > A2C > Chapter 7 > Lesson 7.2.4 > Problem 7-139

7-139.

Solve for without using a calculator.

Rewrite the expression in exponential form.

Logarithms must have positive bases.

See part (a).

7-139.

Solve for without using a calculator.

Rewrite the expression in exponential form.

Logarithms must have positive bases.

See part (a).