Question

2x² = x+6
-X² = X-2
Помогите пжпжпжпжпж даю 30 баллов​

Answer 1

2x^2 - x - 6 = 0

D = 1 - 4 * 2 * (-6) = 49

x1 = (1+$\sqrt{49}$ ) / 4 = 8/4 = 2

x2 =( 1-$\sqrt{49}$) / 4 = -3/2

-x^2 - x - 2 = 0

x^2 + x + 2 = 0

$\left \{ {{-2+1=-1} \atop {-2*1 =-2}} \right.$

x1 = -2

x2 = 1