Question

Помогите пожалуйста!!

Answer 1

Объяснение:

1)

$x \times (x - 12) = 0 \\ x = 0 \\ x = 12$

2)

$7x \times (x + 7) = 0 \\ x \times (x + 7) = 0 \\ x = - 7 \\ x = 0$

3)

$25x \times (3x + 2) = 0 \\ x \times (3x + 2) = 0 \\ x = - \frac{2}{3} \\ x = 0$

4)

$x - 4 {x}^{2} = 0 \\ x \times (1 - 4x) = 0 \\ x = 0 \\ x = \frac{1}{4}$