facfactorise Z - 7 + 7 x y - x y z
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z - xyz 7xy- 7
z (1- xy) 7 ( xy- 1)
z (1-xy) -7(-xy+1)
(z-7) (1-xy)
thnxxx
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Help you...........
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harshittiwari36:
dont copy my answer okk
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