Question

Решать уравнение 10 (x-2)^2-5x (2x-1)=-4

Answer 1

10 (x^2 - 4x + 4) - 10x^2 + 5x = -4
10x^2 - 40x + 40 - 10x^2 + 5x = -4
-35x = -44 
x = 44/35