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Home > CCA2 > Chapter 8 > Lesson 8.3.2 > Problem 8-152

8-152.
  1. Solve each equation. Be sure to check your answers. Homework Help ✎

    1. + 2 = x

    2. + 2 =

First isolate the radical by subtracting 2 from both sides of the equation.

Square both sides.

Set the equation equal to 0.

Factor.

x = x² − 4x + 4

x² − 5x + 4 = 0

(x − 4)(x − 1) = 0

x = 4 (x = 1 is extraneous)

You will need to square twice.