Question

Решите уравнение: 1) 5x^3-45x=0 2)8x^2+24x=0 ^-это степень

Answer 1

1)

$5 {x}^{3} - 45x = 0 \\ x(5 {x}^{2} - 45) = 0 \\ x( {x}^{2} - 9) = 0 \\ x = 0 \: \: x = - 3 \: \: x = 3$

0

3

-3

2)

$8 {x}^{2} + 24x = 0 \\ x(8x + 24) = 0 \\ x(x + 3) = 0 \\ x = 0 \: \: x = - 3$

0

-3