CPM Homework Help : INT2 Problem 1-78

For the rectangle shown at right, write an equation to show that the area as a product of the dimensions is equivalent to the area as a sum of the tiles. Remember to combine like terms whenever possible.

Hint:

Original rectangle of algebra tiles, labeled, left side, 2,x + 3. Bottom side labeled, 4,x + 5. Additional rectangles: 2 rows of 4 x square tiles, labeled 8 x squared. 3 rows of 4 horizontal x tiles, labeled, 12,x. 2 rows of 5 vertical x tiles, labeled 10,x. 3 rows of 5 unit tiles, labeled, 15.