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Home > A2C > Chapter 4 > Lesson 4.1.4 > Problem 4-58

4-58.
  1. If g(x) = x2 − 5, find the value(s) of x so that: Homework Help ✎

    1. g(x) = 20

    2. g(x) = 6

Substitute 20 for g(x). Solve for x. Remember that squaring a negative number results in a positive number, so there should be two solutions.

±5

Refer to part (a).