### Home > CCA2 > Chapter 8 > Lesson 8.3.3 > Problem 8-173

8-173.

Determine whether *x* = −2 is a solution to the equation *x*^{4} − 4*x* = 8*x*^{2} − 40. Show why or why not. Homework Help ✎

Try substituting −2 into the equation.

8-173.

Determine whether *x* = −2 is a solution to the equation *x*^{4} − 4*x* = 8*x*^{2} − 40. Show why or why not. Homework Help ✎

Try substituting −2 into the equation.