ответ: (x*z)³-(y*z)³-y*z+x*z-x+y=(x-y)*[z³*(x²+x*y+y²)-1].
Объяснение:
(x*z)³-(y*z)³-y*z+x*z-x+y=[(x*z)³-(y*z)³]+(x*z-y*z)-x+y=(x*z-y*z)*(x²*z²+x*y*z²+y²*z²)-x+y=z³*(x-y)*(x²+x*y+y²)-(x-y)=(x-y)*[z³*(x²+x*y+y²)-1].
