Question

write the following cubic in expanded form (2x +1)³​

Answer 1

Answer:

1. the formula is a3+b3 -3a2b-3ab2

Step-by-step explanation:

8x3+1-12x2-6x

Answer 2

Answer:

Hi !!!

Step-by-step explanation:

(a+b)³ = a³+3a²b+3ab²+b³.

given,

a= 2x and b= 1.

(2x+1)³= (2x)³ + 3(2x)²(1) + 3(2x)(1)² + 1³

= 8x³ + 6x² + 6x +1.

Therefore,

the answer is 8x³ + 6x² + 6x + 1.

Hope this helps u !!!!!

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