Question

Решите уравнение
2х³-50х=0

Answer 1

$2 {x}^{3} - 50x = 0 \\ 2x( {x}^{2} - 25) = 0 \: \: \: \: \: | \div 2 \\ x( {x}^{2} - 25) = 0 \\ \bold{x _1 = 0} \\ {x}^{2} - 25 = 0 \\ {x}^{2} = 25 \\ x = \sqrt{25} \\ \bold{x_2 = 5} \\ x = - \sqrt{25} \\ \bold{x_3 = - 5}$

Answer 2

Объяснение:

$2x( {x}^{2} - 25) = 0 \\ 2x = 0 \: \: \: \: x = 0 \\ {x}^{2} - 25 = 0 \\ {x}^{2} = 25 \\ x = \sqrt{25} \: \: \: \: \: x = 5 \: \: \: \: x = - 5$