Question

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

Answer 1

x(x-2)(x+1)=x²(x-1)
x(x²+x-2x-2)=x³-x²
x³+x²-2x²-2x-x³+x²=0
-2x=0
x=0

Answer 2

x(x-2)(x+1)=x²(x-1)
x(x²-x-2x-2)-x²(x-1)=0
x³-x²-2x-x³+x²=0
-2x=0
x=0