Chapter 14.5, Problem 35PPS

To determine

To find:The area of the rectangle.

Answer to Problem 35PPS

The area of the rectangleis $s^2+9s+20$

Explanation of Solution

Given information:

The side of rectangle is $4,5$ the side of square is s.

Calculation:

The area of rectangle is product of length and width.

  $\begin{array}{c}\left(4+s\right)\left(5+s\right)=s\left(5+s\right)+4\left(5+s\right)\\ =5s+s^2+20+4s\\ =s^2+9s+20\end{array}$