Practice!

Sample Problem

Factor the following trinomial

x2+ 5x + 6 = (x + )(x + )

Solution

We are looking for two factors of 6 that add up to 5. Since 2 and 3 are factors of 6 and add up to 5, they are the solutions. So we have x2+ 5x + 6 =(x+2)(x+3).