# How do you multiply (2s+3)(s^2+4s+3)?

Jan 31, 2017

$2 {S}^{3} + 11 {S}^{2} + 18 S + 9$

#### Explanation:

$\textcolor{w h i t e}{a a a a a a a a a a a a a}$${S}^{2} + 4 S + 3$

$\textcolor{w h i t e}{a a a a a a a a a a a a a}$$2 S + 3$

$\textcolor{w h i t e}{a a a a a a a a a a a}$$- - -$

$\textcolor{w h i t e}{a a a a a a a a a a a a a}$$2 {S}^{3} + 8 {S}^{2} + 6 S$

$\textcolor{w h i t e}{a a a a a a a a a a a a a a a a a}$$+ 3 {S}^{2} + 12 S + 9$

$\textcolor{w h i t e}{a a a a a a a a a a a a a}$$- - - - - -$

$\textcolor{w h i t e}{a a a a a a a a a a a a}$$2 {S}^{3} + 11 {S}^{2} + 18 S + 9$