### Home > CAAC > Chapter 6 > Lesson 6.2.2 > Problem6-55

6-55.

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.

 $y$ $-4$ $3y$ $3y^2$ $-12y$

$3y(y−4)=3y^2−12y$

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

 $y$ $-4$ $3y$ $3y^2$ $-12y$ $5$ $5y$ $-20$

$(3y+5)(y−4)=3y^2−7y−20$