Question

How do you multiply `(t-3)(t^2+3t+9)`?

Answer 1

`=t^3-27`

Explanation:

`a^3-b^3=(a-b)(a^2+ab+b^2)`

Similarly

`(t-3)(t^2+3t+9)` can be written as

`t^3-3^3`

`=t^3-27`