expand (a+1) (a-2)
needed fast
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Answer:
the expanded form is a+1×a-2
Answered by
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Answer:
a^2-a-2
Step-by-step explanation:
(a+1) (a-2)
(x+a)(x+b)=x^2+(a+b)x+ab
(a+1) (a-2)=a^2+(1+ -2)a+(1)(-2)
=a^2-a-2
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