Factorise The Following:-
i. x2-xz+xy-yz
x2 - xz + xy - yz = [x2 - xz ] + [xy - yz]
= x(x - z) + y(x - z)
= (x + y) (x - z)
Factorise : x2−xz+xy−yz
When we factorise y2+xy+yz+xz, one of the factors is _____________