CPM Homework Help : INT2 Problem 2-79

Copy each of the area models below and fill in the missing dimensions and areas. Then write the entire area as a product equivalent to the area as a sum. Homework Help ✎

Hint (a):
Try to find a way to factor what is inside of the boxes, then it is possible to write the area as a product of its sum.
Answer (a):
$2xy+8y=2y(x+4)$

Answer (b):
$(x+8)(x+5)=x^2+13x+40$

Answer (c):
$(x−4)(2z−3y+5)=2xz-3xy+5x-$
$8z+12y−20$ .

Answer (d):
Multiple answers are possible.