### Home > INT2 > Chapter 4 > Lesson 4.2.2 > Problem4-75

4-75.

Use an area model to factor each of the following expressions.

1. $x y - 6 x - 18 + 3 y$

 $3y$ $-18$ $xy$ $-6x$

Look for common factors in each row and column.

2. $2 x y - 3 y + 2 x - 3$

See the hints in part (a).

$(2x−3)(y+1)$

3. $12 y + 14 x - 8 x y - 21$

See the hints in part (a).

4. How did you determine where to place the terms in your area models?

There needs to be a common factor in each row and column.