### Home > AC > Chapter 5 > Lesson 5.1.5 > Problem 5-50

5-50.

Multiply each of the following expressions. Show all of your work.

Use a generic rectangle to multiply.

**A 2 by 2 rectangle.**Put the products on the outside of the rectangle.

**Added to the rectangle, the following labels: left side, top, + 3, left side, bottom, x, bottom side, left, 4, x, bottom side, right, +, 5.**Use length times width to find the areas of the small rectangles.

**Labels added to the interior of the rectangle as follows: top left, 12 x, top right, 15, bottom left, 4 x squared, bottom right, 5 x.**Write the total area as a sum.

Follow the steps in part (a).

Follow the steps in part (a).

Follow the steps in part (a).