Question

2.
Expand ( a +1/1 )³​

Answer 1

Answers-

4a^2+3a+1

Explanation:

( a +1/1 )³

we know that (a+b)^3=a^2+b^2+3ab(a+b)

so take 'a' as a and '1/1' as b

then-

( a +1/1 )³

=(a)^2+(1/1)^2+3×a×1/1(a+1/1)

=a^2+1+3a(a+1/1)

=a^2+1+3a^2+3a

=4a^2+3a+1 (ans)

Hope this will help you

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