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(a +2)(a - 1)
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Answer:
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Step-by-step explanation:
(a+2)(a-1)
a(a-1)+2(a-1)
a^2-a+2a-2
a^2-a-2
Answered by
1
It is known that
(x+a) (x+b)=x²+(a+b)x+ab
(a+2)(a-1)
=(a)²+{2+(-1)}a+(2)×(-1)
=a² +(2-1)a - 2
=a² +a - 2
Hope it helps u
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