Question

expand the following (3a+1/3)^3​

Answer 1

Step-by-step explanation:

see the attachments...

Answer 2

(A+b)^3=a^3+b^3+3ab(a+b)

So, by solving,

27a^3+1/27+3a(3a+1/3)

By solving the bracket,

27a^3+1/27+a(9a+3)

27a^3+1/27 +9a^2+3a

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