Question

Решите уравнение:

x(x-1)-(3+x)×x=4

Answer 1

x^2 - x - 3x - x^2 - 4 = 0
-4x - 4 = 0
-x - 1 = 0
x = -1

Answer 2

x^2-x-3x-x^2=4
-4x=4
x=-1