Question

FACTORISE:
4( x+y-z)(y-x)² +4(y+z- x) (z-y)² +4( z+x-y) (x-z)² + 8( x+y-z) (y+z-x)( z+x-y)​

Answer 1

Answer:

Take (x+y-z) common so that the equation will become smaller