Х(х+1)*(х-1)-(х-2)*(х^2+2х+4)

Question

Х(х+1)*(х-1)-(х-2)*(х^2+2х+4)

Answer 1

х(х+1)*(х-1)-(х-2)*(х^2+2х+4)=х^3-х-х^3+8=

=8-х