Question

subtract. 3x(x-y-z)+3y(x-y+z)+3z(x+y-z) from 3(x+y) (x-y)+3z(2y+z)

Answer 1

Hi lee here is ur answer 3x²-3y²+6yz+3z²-(3x²-3xy- 3xz+ 3xy-3y²+3yz+3xz+3yz-3z²)= 6z²

Hope it helps you ☺

Answer 2

answer

$- z^{6}$