What are the real and complex solutions of the polynomial equation?

x^4 - 41x^2 = -400

2 answers

x^4 - 41x^2 = -400
x^4 - 41x^2 + 400 = 0
(x^2-16)(x^2-25) = 0
x = ±4,±5
steve is correct!!!1//1!!