Question

How do you multiply `(2+x)^3`?

Answer 1

`x^3+6x^2+12x+8`

Explanation:

We know that `(a+b)^3=a^3+3a^2b+3ab^2+b^3`
In this case, `a=2` and `b=x`
`2^3+3(2^2)(x)+3(2)(x^2)+x^3`
`8+12x+6x^2+x^3`