Question

Factorise :

z - 7 + 7 x y – x y z

pls tell my fellows
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Answer 1

The answer is -(7-z)(1-xy)

Answer 2

Answer:

(xy - 1)(7 - z

Step-by-step explanation:

z - 7 + 7 x y – x y z

= 7xy - xyz - 7 + z          Factor by grouping:-

= x y(7 - z) -1(7 - z)

= (xy - 1)(7 - z).