Question

решите уравнения плз 5x^2=2x+2

Answer 1

Решение:
$5 {x}^{2} = 2x + 2 \ 5 {x}^{2} - 2x - 2 = 0 \ d1 = 1 + 10 = 11 \ x1 = frac{1 + sqrt{11} }{5} \ x2 = frac{1 - sqrt{11} }{5}$

Answer 2

5x^2-2x-2=0
D= 4-4*5*(-2)