Question

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

Answer 1

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

Explanation:

A rule of cubing binomials: `(a+b)^3 = a^3+3a^2b+3ab^2+b^3`
This is an easier method to follow as opposed to multiplying out the binomials.

`(x+2)^3`

`x^3 + 3(x^2)(2) + 3(x)(2^2) + 2^3`

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