Finding Roots of a Quadratic

Solve the equation by factoring:
x² + x - 20 = 0

• x = -5 or x= 4

• x = 4 or x= 5

• x = 5 or x= -4

• x = -4 or x= -5

Tags

CCSS.HSA-REI.B.4B

Solve for the values of x:
(x + 2)(x - 3) = 0

• x=2 or x=3

• x=-2 or x=-3

• x=2 or x=3

• x=-2 or x=3

Tags

CCSS.HSA-REI.B.4B

Solve
x² + 2x - 24 = 0

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

Tags

CCSS.HSA-REI.B.4B

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.4B

Given this graph is the function of y=x^2-2x-8 , what is the solution to x^2=2x+8 ?

• (1, 9)
  

• x = {-2, 4}
  

• (0, 8)
  

• x = {5, 2}
  

x = { ​ (a)   }

• -2, 1

• 2, -1

• (-2, 0)

• (1, 0)

• (2, 0)

• (-1, 0)

• (0, -32)

• (-0.5, -36)

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

• m=±81
• m=±9
• m=±3
• No real solution

Tags

CCSS.8.EE.A.2

Solve the equation by factoring:

x² + 13x + 40 = 0

• x=-8 or x= 5

• x=-40 or x=-1

• x=5 or x=8

• x=-8 or x=-5

Tags

CCSS.HSA-REI.B.4B