Question

( 3x+1)^3 expand please give me answer
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Answer 1

Answer:

(3x+1)^2

using (a+b)^2=a^2+b^2+2ab

(3x)^2+(1)^2+2*3x*1

9x^2+1+6x

Step-by-step explanation:

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Answer 2

Answer:

27x³+27x²+9x+1

Step-by-step explanation:

by using formula (a+b)³=a³+b³+3ab(a+b)