Question

Solve the equation. (Enter all answers including repetitions. If there is no solution, enter NO SOLUTION.)
x^4 - 32x^2 + 256 = 0
x= (smallest value)
x=
x=
x= (largest value)

Answer 1

x^4 - 16x^2-16x^2 + 256 =0

x^2(x^2 -16)-16(x^2-16) = 0
(x^2-16)(x^2-16) = 0


I think you can solve for x from there

Answer 2

how?

Answer 3

x^2 - 16 = 0

x^2 = 16

x = +/- 4

Answer 4

there's four values

x = -4
x = -4
x = 4
x = 4