CPM Homework Help : CCA Problem 7-109

Find the dimensions of the generic rectangle shown at right and write its area as a sum and a product.

Generic rectangle interior top left $-6x$

interior top right $4$

interior bottom left $9x^2$

interior bottom right $-6x$

Hint:

To express the area as a product, find the dimensions of the large rectangle and multiply them together. To express the area as a sum, add the tile pieces together.

Generic rectangle left edge top $-2$

interior top left $-6x$

interior top right $4$

left edge bottom $3x$

interior bottom left $9x^2$

interior bottom right $-6x$

bottom edge left $3x$

bottom edge right $-2$