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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 ✎

  1.   

  • Find the length and width of each small rectangle.

    3y(y − 4) = 3y2 − 12y

  • Follow the steps in part (a).

    (3y + 5)(y − 4) = 3y2 − 7y − 20