Question

Rezolvati ecuatia:
2x^2=x(2x+1)-25

Answer 1

2x^2 = 2x^2 + x - 25
2x^2 - 2x^2 + x +25 = 0
x = -25 

Answer 2

$2x^2=x(2x+1)-25 \\ 2x^2=2x^2+x-25 \\ 2x^2-2x^2-x=-25 \\ -x=-25 \\ x=25$