quadratic equations

Solve the following quadratic equation...

x² + 9x + 20 = 0

• x = -2

  x = -10

• x = -5

  x = -4

• x = -1

  x = -20

• x = 4

  x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by completing the square.
x² + 4x= 12

• x = 2 and -2
• x = -6 and 2
• x = 6 and -2
• x = 1 and -1

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7

Tags

CCSS.HSA-REI.B.4B

Solve

x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

What are the roots of x² - x - 6 = 0?

• 3

• 2

• -3

• -2

Tags

CCSS.HSA-REI.B.4B

What is the solution set of 2x² - x - 1 = 0?

• {1, 1/2}

• {1, -1/2}

• {-1, 1/2}

• {-1, -1/2}

Tags

CCSS.HSA-REI.B.4B

Solve by Factoring.
 $4x^2+x-3=0$  

•  $\frac{3}{4},\ -1$  

•  $\frac{4}{3},\ -1$  

•  $\frac{4}{3},\ 1$  

•  $\frac{4}{3},\ 0$  

Tags

CCSS.HSA-REI.B.4B

Solve by factoring.

x² - 3x-10= 0

• -2 , 5

• -5, 2

• -5, -2

• 2, 5

Tags

CCSS.HSA-REI.B.4B

Solve the equation by the square root property.


 $\left(x-15\right)^2=64$  

• - 49

• -7, -23

• 23

• 7, 23

Tags

CCSS.HSA-REI.B.4B

What is the value of b in the equation below?

 $x^2-2x=-4$  

• -4

• 2

• -2

• 4