Question

Запиши множество корней уравнения:
х(х-1)=0
(х-2)(х^2-4)=0
х=2
х^2+3=0

Answer 1

1) x(x - 1) = 0
x = 0 / x - 1 = 0
x = 0 / x = 1
x = 0; 1.

2) (x - 2)(x^2 - 4) = 0
(x - 2)(x - 2)(x + 2) = 0
x - 2 = 0 / x + 2 = 0
x = 2 / x = -2
x = -2; 2.

3) x = 2.

4) x^2 + 3 = 0
x^2 = -3.