Question

Find each product.

1. (4a+4)(4a^2+a-5)

Answer 1

Expand the following:
\[4 a \left(4 a^2+a-5\right)+4 \left(4 a^2+a-5\right) \]

Answer 2

what do u get on multiplying 4a inside for the first term @joshoyen ?

Answer 3

\[16a^3\] ?

Answer 4

yes, that's the first term. keep going

Answer 5

Find the 2nd and 3rd terms in the same manner.