Question

5. Factorise by grouping.
(a) xy - yz - XZ + z2​

Answer 1

Step-by-step explanation:

xy - yz - xz + z²

=> y ( x - z) - z ( x - z)

=> (x - z)(y - z)

Answer 2

Answer:

(x-z)(y-z)

Step-by-step explanation:

(xy-yz) - (xz+z2)

= y(x-z) - z(x-2)

= (x-z)(y-z)

Hope this help!!