Question

Помогите решить 5 x в квадрате - 3 -2 = 0

Answer 1

$5 {x}^{2} - 3 - 2 = 0 \\ 5 {x}^{2} - 5 = 0 \\ {x}^{2} - 1 = 0 \\ {x}^{2} = 1 \\ \\ x = 1 \\ x = - 1 \\ \\ x1 = - 1 \\ x2 = 1$

Answer 2

5x² - 3 - 2 = 0
5x² = 0+3+2
5x² = 5
x² = 5/5
x² = 1
x1 = -1
x2 = 1