Question

What are the real or imaginary solutions of the polynomial equation?

x4 – 52x2 + 576 = 0

Answer 1

x^4 - 52x² + 576
x^4 - 36x² – 16x² + 576
x²(x² - 36) – 16(x² – 36)
(x² – 16)(x² – 36)
(x + 4)(x – 4)(x + 6)(x – 6)