### Home > A2C > Chapter 9 > Lesson 9.2.1 > Problem 9-80

9-80.

Solve each equation. Homework Help ✎

5.2(3.75)

= 100^{x}4 + 3

*x*^{4}= 81

Divide by 5.2 and then use logarithms.

*x* ≈ 2.24

Use roots or fractional exponents.

9-80.

Solve each equation. Homework Help ✎

5.2(3.75)

= 100^{x}4 + 3

*x*^{4}= 81

Divide by 5.2 and then use logarithms.

*x* ≈ 2.24

Use roots or fractional exponents.