Factoring Trinomials and Solve Quadratics by Factoring

x²+4x-32=0

• x= -8, 4

• x= 8, -4

• x= -8, -4

Tags

CCSS.HSA-REI.B.4B

x²-14x-51=0

• x= 17, -3

• x= -17, 3

• x= -17, -3

Tags

CCSS.HSA-REI.B.4B

3x²+9x-30=0

• x= 2, -5

• x= 5, -2

• x= -5, -2

Tags

CCSS.HSA-REI.B.4B

6x²-x-2=0

• x= -2/3, 1/2

• x= 2/3, -1/2

• x= -2/3, -1/2

Tags

CCSS.HSA-REI.B.4B

Factor 

 $k^2+7k+10$  .

•  $(k+2)(k-5)$  

•  $(k+2)(k+5)$  

•  $(k+10)(k+4)$  

•  $(k-2)(k-5)$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

To factor

 $x^2+8x+15$  , find two factors of 15 whose sum is _____.

• 1

• 2

• 8

• 15

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor $k^2-2k-24$  

•  $(k-4)(k+6)$  

•  $(k+4)(k+6)$  

•  $(k+6)(k-1)$  

•  $(k+4)(k-6)$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.B.2

CCSS.HSA.REI.B.4

Factor:

 $x^2+6x+8$  

•  $(x+4)(x+3)$  
  

•  $(x+2)(x+3)$  
  

•  $(x+4)(x+2)$  
  

•  $(x+5)(x+1)$  
  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve for X:

(x-5)(x+6)=0

• {5,5 }

• { -5,-5 }

• { -5,-6 }

• {5,-6 }

Tags

CCSS.HSA-REI.B.4B

What is the first step in solving 
(x + 2)(x - 3) = 0      ?

• Plug in zero for x
• Solve for x
• FOIL
• Set each binomial factor equal to zero

Tags

CCSS.HSA-REI.B.4B