factorize by grouping :
xyz - xy - z + 1
this is very urgent plz help.
don't give irrelevant answers
thank you
Answers
Answered by
1
Answer:
(z-1)(xy-1)
Step-by-step explanation:
given,
xyz-xy-z+1
= (xyz-xy) -(z-1)
=xy(z-1)-1(z-1)
=(z-1)(xy-1)
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