Question

factorise x^2y-xz^2-xy+z^2​

Answer 1

Answer:

(xy - z²) (x- 1)

Step-by-step explanation:

${x}^{2} y - x {z}^{2} - xy + {z}^{2} \\ = {x}^{2} y - xy - x {z}^{2} + {z}^{2} \\ = xy(x - 1) - {z}^{2} (x - 1) \\ = (xy - {z}^{2} )(x - 1)$