Question

How do you multiply `(x^(2) + 9)(x+4)`?

Answer 1

`x^3 + 4x^2+9x+36`

Explanation:

just multiply internal factors
`(x^2.x) +( x^2 .4)+(9.x)+(9.4)`
= `x^3 + 4x^2+9x+36`