### Home > CCA > Chapter 4 > Lesson 4.1.1 > Problem 4-12

4-12.

For each of the following generic rectangles, find the dimensions (length and width) and write the area as the product of the dimensions and as a sum. Homework Help ✎

Find the length and width of each small rectangle.

3

*y*(*y*− 4) = 3*y*^{2}− 12*y*

Follow the steps in part (a).

(3

*y*+ 5)(*y*− 4) = 3*y*^{2}− 7*y*− 20