Factoring Quadratics When A Is Not Equal To 1

Solve by factoring.

x² + 15x + 44 = 0

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

Tags

CCSS.HSA-REI.B.4B

Find the factors of 5x²+20x+20

• 5(x+2)(x+2)

• 5(x-2)(x-2)

• 5(x+2)(x-2)

• (5x+2)(x+2)

What is a method of checking your work when factoring?

• FOIL

• asking the teacher every time

• assume you're correct

• division

Factor
3a² + 4a + 1

• (7a-10)(a-8)

• Not factorable

• (3a+1)(a+1)

• (3a-1)(a-1)

Tags

CCSS.HSA-REI.B.4B

Solve the equation by factoring:

2x² + 26x + 80 = 0

• -8, 5

• -40, -1

• 5, 8

• -8, -5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:3x² + 5x + 2 = 0  

• x = -2/3 and x = -1

• x = -3/2 and x = -1

• x = 2/3 and x = 1

• x = 2/3 and x = -1

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:  2x²+ 7x + 6 = 0

• x= 3/2 and x = 2

• x = -3/2 and x = -2

• x = 6 and x = 7

• x = -6 and x = -7

Tags

CCSS.HSA-REI.B.4B

2x²-19x+9

• (2x+1)(x-9)

• (2x-9)(x-1)

• (2x-1)(x+9)

• (2x-1)(x-9)

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: 3a² + 4a + 1

• a = 10/7, a = 8

• Not factorable

• a = -1/3, a = -1

• a = 1/3, a = 1

Tags

CCSS.HSA-REI.B.4B