Question

1. 3x²=0
2. X²-2x=0
3. X²-9=0
4. (X-5)²=16
Помогите пожалуйстаааа

Answer 1

Ответ:

1

$x 1 = x2= 0$

2

$x(x - 2) = 0 \\ x1 = 0 \\ x2 = 2$

3

$(x - 3)(x + 3) = 0 \\ x1 = 3 \\ x2 = - 3$

4

${x}^{2} - 10x + 25 = 16 \\ {x}^{2} - 10x + 9 = 0 \\ x1 + x2 = 10 \\ x1x2 = 9 \\ \\ x1 = 9 \\ x2 = 1$