Factoring Trinomials using Area Models when a = 1

• x

• 5

• -5

• 1

• x

• 9

• -9

• 1

• 0

• 1
• -2
• -15

Drag the correct terms to each box.

a

b

• -15
• 15

• 30

• -2

• 2

Use the factor pair sheet and your calculator to find the factors of -15

Which factor pair has a sum of -2?

• 1 + (-15)

• -15 + 1

• 3 + (-5)

• -3 + 5