Question

$(3q + 1) ^{3}$
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Answer 1

(a+b )^3
a cube +b cube + 3 ab (a+b)
3 q cube + 1+3×3q×1 (3q+1)
3q cube +1+27 q square +9q
hope it will help you please mark at brainliest.

Answer 2

Hëy Frïèñd..

Here is the Solution..

(a + b)³ = a³ + b³ + 3ab(a + b)

So.

(3q + 1)³

= (3q)³ + (1)³ + 3 x 3q x 1 (3q + 1)

= 27q³ + 1 + 9q(3q +1)

= 27q³ + 1 + 27q² + 9q

= 27q³ + 27q² + 9q + 1

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I Hope This Will Help You tex ^_^