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

9-80.
  1. Solve each equation. Homework Help ✎

    1. 5.2(3.75)x = 100

    2. 4 + 3x4 = 81

Divide by 5.2 and then use logarithms.

x ≈ 2.24

Use roots or fractional exponents.