### Home > PC > Chapter 6 > Lesson 6.4.2 > Problem 6-157

6-157.

Solve for

*x*. Homework Help ✎2

*x*^{2}− 5 = 2*x*6

*x*^{4}=*x*^{2}+ 5= 7 2 +

Use the Quadratic Formula.

1. Bring all terms to the left side and set = 0.

2. Factor.

2. Then square both sides and multiply out the right side.

*x* = 4

Multiply all terms by (*x* − 1)^{2}.