Question

How do you simplify `(3x+4)^3`?

Answer 1

`=27x^3+108x^2+144x+64`

Explanation:

Since

`(A+B)^3=A^3+3A^2B+3AB^2+B^3`

we get

`(3x+4)^3=(3x)^3+3(3x)^2*4+3(3x)*4^2+4^3=`

`=27x^3+108x^2+144x+64`