(x-1)(x+2)-x(x+3)=3x-1

Question

(x-1)(x+2)-x(x+3)=3x-1

Comments

вроде -3

Answer 1

(x-1)(x+2)-x(x+3)=3x-1
(х^2 + 2x - 2 - x) - (x^2+3x)=3x-1
х^2 + 2x - 2 - x - x^2 - 3x = 3x-1
-2x-2=3x-1
3x+2x=2-1
5x=1
x=0.2