Solving Quadratic Equations by Factoring

Solve $x^2=-13x-40$ 

• x = 8 and x = 5

• x = -8 and x = -5

• x = 7 and x = -6

• x = -2 and x = 4 

Tags

CCSS.HSA-REI.B.4B

 Solve $-5x^2-19x=-20-2x-8x^2$ 

• x = 5/3 and x = 4 

• x = 3/5 and x = 4

• x = -5/3 and x = 8

• x = -1/3 and x= 5

Tags

CCSS.HSA-REI.B.4B

 Solve $3x^2-10x+8=0$  

• x = -4/3 and x = -2

• x = 6 and x = 4

• x = 4/3 and x = 8

• x = 4/3 and x = 2

Tags

CCSS.HSA-REI.B.4B

 Solve $3x^2-21x=-30$  

• x = 5 and x = 2

• x = -5 and x = -2

• x = - 5 and x = -3

• x = -5 and x = 0

Tags

CCSS.HSA-REI.B.4B

 Solve $\left(r+7\right)\left(r+6\right)=0$  

• r = 7 and r = 6

• r = -7 and r = -6

• r = -1/6 and r = 1/8

• r = 8 and r = 7

Tags

CCSS.HSA-REI.B.4B

 Solve $5a^2+2a=7$  

• a = -7/5 and a = 1

• a = 7/5 and a =-8

• a = -7 and a = 5

• a = 8/5 and a= -4

Tags

CCSS.HSA-REI.B.4B

 $4x^2-36x+73=-7$  

• x = -7 and x = -4

• x = -7 and  = -6

• x = 2 and x = -1

• x= 5 and x= 4

Tags

CCSS.HSA-REI.B.4B

 $7m^2-18m-9=0$  

• m = -3/7 and m = 8

• m = -3/7 and m =3

• m = 21 and m = -3

• m = 8/5 and m = -2

Tags

CCSS.HSA-REI.B.4B

 $k^2=25$  

• k = 0 and k = 5

• k = -5 and k = 5

• k = 1 and k = 7

• k = -5 and k = -7

Tags

CCSS.8.EE.A.2

 $x^2-8x=-12$  

• x = 4 and x= 2

• x = 2 and x = 6 

• x = -4 and x = 6

• x = 5 and x = -8

Tags

CCSS.HSA-REI.B.4B