Question

Решите уравнения
25x²-1=0
2x²-10x=0
x²-7x-18=0​

Answer 1

Во 2 там допиши ))))))))))

Answer 2

${x = \frac{1}{25} }^{} \\ x = + - \frac{1}{5} \\ x1 = - \frac{1}{5} \\ x2 = \frac{1}{5}$

$2x \times (x - 5) = 0 \\ x \times (x - 5) = 0 \\ x1 = 0 \\ x2 - 5$

$x(x + 2) - 9(x + 2) = 0 \\ (x + 2)(x - 9) = 0 \\ x1 = - 2 \\ x2 = 9$