Question

ДАЮ 100 БАЛЛОВ!! x^3-5x^2-x+5=0

Answer 1

(x - 5)(x2 - 1) = 0;

(x - 5)(x - 1)(x + 1) = 0;

1) x - 5 = 0;

x = 5;

2) x - 1 = 0;

x = 1;

3) x + 1 = 0;

x = -1.