Question

How do you evaluate `(x ^ { 2} - 5) ( 4x + 3)`?

Answer 1

4`x^3` + 3`x^2` - 20`x` - 15

Explanation:

`x^2` x 4`x` = 4`x^3`
`x^2` x 3 = 3`x^2`
-5 x 4`x` = -20`x`
-5 x 3 = -15