LHHS - Solving by Factoring Review

What is the first question you ask yourself when factoring a polynomial? 

• How many terms does it have? 
• Is there a GCF? 
• What strategy should I use? 
• Why do I have to learn this?!?!?!

Tags

CCSS.HSA.SSE.A.2

What two number factors multiply to 10 and add up to 11

• 1, 10
• 2, 5
• -10, -1
• 7, 3

Tags

CCSS.4.OA.B.4

What two number factors multiply to -192 and add up to -4

• 16, 12
• -12, 16
• 192, 4
• -16, 12

Which answer correctly factored for the equation below?

• (x + 7)(x - 2) = 0
• (x - 7)(x + 2) = 0
• (x - 7)(x - 2) = 0
• (x + 7)(x + 2) = 0

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

What property would you use to solve the following?
(x-3)(x+2)=0

• Commutative Property
• Associative Property
• Zero Product Property
• Inverse Property

Tags

CCSS.HSA.REI.B.4

What is the first step in solving

(x + 2)(x - 3) = 0 ?

• Plug in zero for x

• Solve for x

• FOIL/Distribute

• Set each binomial factor equal to zero

Solve using Zero-Product Property.

(2x - 2)(5x + 5) = 0

• x = -1

• x = -1 or x = 1

• x = 1

• x = -2 or x = 5

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve using Zero Product Property:

(x - 3)(x + 6) = 0

• x= -3, x= -6

• x= 3, x= -6

• x= -3, x= 6

• x= 3, x= 6

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6
• x = 3 and x = -6
• x = -9 and x = 2
• x = 9 and x = -2

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4