Chapter 0.2, Problem 1E

To determine

the product.

Answer to Problem 1E

  $\left(a+2\right)\left(a+4\right)=a^2+6a+8$

Explanation of Solution

Given information :

  $\left(a+2\right)\left(a+4\right)$

It is given that $\left(a+2\right)\left(a+4\right)$

So,

  $\begin{array}{c}\left(a+2\right)\left(a+4\right)=a\left(a+4\right)+2\left(a+4\right)\\ a\left(a+4\right)+2\left(a+4\right)=a^2+4a+2a+8\\ a^2+4a+2a+8=a^2+6a+8\end{array}$

So,

  $\left(a+2\right)\left(a+4\right)=a^2+6a+8$