x2 –xz + xy –yz =?(i) (x-y)(x+z)(ii) (x-y)(x-z)(iii) (x+y)(x-z)(i

1.	x2 –xz + xy –yz =?(i) (x-y)(x+z)(ii) (x-y)(x-z)(iii) (x+y)(x-z)(iv) (x-y)(z-x)
Answer» (iii) (x+y)(x-z) By taking x and y as the common factor we get, x² –xz + xy –yz = x(x-z) + y(x-z) = (x-z) (x+y)

x2 –xz + xy –yz =?(i) (x-y)(x+z)(ii) (x-y)(x-z)(iii) (x+y)(x-z)(iv) (x-y)(z-x)

Answer»

(iii) (x+y)(x-z)

By taking x and y as the common factor we get,

x² –xz + xy –yz

= x(x-z) + y(x-z)

= (x-z) (x+y)