Factorise: a²-b+ab -a
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Answer:
(a-b)(a+ab) your answer
Answered by
0
Step-by-step explanation:
a^2-b+ab-a
=a^2+ab-a-b
=a(a+b)-1(a+b)
=(a-1) (a+b)
either,. or
a-1=0. a+b=0
a=1. a=-b
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