### Home > CCA2 > Chapter 8 > Lesson 8.2.1 > Problem 8-78

8-78.

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

Isolate *x*^{4} then use roots or fractional exponents.

8-78.

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

Isolate *x*^{4} then use roots or fractional exponents.