Home > CCA > Chapter 4 > Lesson 4.1.1 > Problem4-12

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 ✎

1.  $3y^2$ $-12y$
• Find the length and width of each small rectangle.

3y(y − 4) = 3y2 − 12y

1.  $3y^2$ $-12y$ $5y$ $-20$
• Follow the steps in part (a).

(3y + 5)(y − 4) = 3y2 − 7y − 20