factorise this - z-7+7xy-xyz
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Answered by
17
=z-7 - xyz + 7xy
=(z-7 )- xy(z-7)
=(1- xy)(z-7)
=(z-7 )- xy(z-7)
=(1- xy)(z-7)
Answered by
5
Answer:
Step-by-step explanation:
(1-xy)(z-7)
Explanation:
z - 7 + 7xy - xyz
= z-xyz+7xy-7
=z(1-xy)+7(xy-1)
= z(1-xy)-7(1-xy)
= (1-xy)(z-7)
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