CPM Homework Help : INT1 Problem 4-76

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Home > INT1 > Chapter 4 > Lesson 4.2.2 > Problem 4-76

4-76.

For each of the following area models, determine the dimensions (length and width) and write the area as a product and as a sum.

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

Hint (a):
Find the length and width of each small rectangle.
Answer (a):
$y$
$-4$
$3y$
$3y^2$
$-12y$
$3y(y−4)=3y^2−12y$

$y$
$3y$
$-12y$
$5y$

Hint (b):

Follow the steps in part (a).

Answer (b):

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

$(3y+5)(y−4)=3y^2−7y−20$

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