Question

решите уравнение!
x+2x-x^2=0

Answer 1

$x+2x-x^2=0\\\\3x-x^2=0\\\\x(3-x)=0\\\\\underline {x_1=0\; \; ,\; \; x_2=3}$

Answer 2

3x - x^2 = 0
x(3-x)=0
x = 0 или  3-x=0
x=0
x=3