z-7 + 7x y - x y z Factorise.
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Answer:
(1-xy)(x-7) is the correct answer
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Step-by-step explanation:
= z - 7 + 7xy - xyz
= z- 7 + (- xyz )+ 7xy
= ( z - 7 ) - xy ( z - 7)
= (z - 7) (1 - xy).
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