### Home > AC > Chapter 2 > Lesson 2.1.9 > Problem2-89

2-89.

Copy and complete each of the Diamond Problems below. The pattern used in the Diamond Problems is shown at right.

1. What two numbers multiply to $10$ and add to $7$?

$5$ and $2$

1. For parts (b), (c), and (d), refer to part (a).