Solving Quadratic Equations #1

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4
• -4 & 10
• -8 & 4
• 8 & -4

Tags

CCSS.HSA-REI.B.4B

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

One solution of the quadratic equation
x²-7x+12=0 is

• x=3
• x=2
• x=-3
• x=-2

Tags

CCSS.HSA-REI.B.4B

What are the factors of x² - 3x + 2?

• (x + 2)(x + 1)

• (x + 2)(x - 1)

• (x - 2)(x + 1)

• (x - 2)(x - 1)

What are the factors of 3x² + 10x + 8 = 0?

• (3x + 4)

• (3x - 4)

• (x + 2)

• (x - 2)

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:

 $3x^2-11x+6=0$  

•  $\frac{2}{3}\ and\ 3$  

•  $\frac{3}{2}\ and\ 3$  

•  $\frac{-2}{3}\ and\ -3$  

•  $\frac{1}{3}\ and\ 6$  

Tags

CCSS.HSA-REI.B.4B

Solve 

 $x^2-6x=13$  

•  $3\pm\sqrt{22}$  

•  $6\pm\sqrt{22}$  

•  $-3\pm\sqrt{22}$  

•  $-6\pm\sqrt{22}$  

Tags

CCSS.HSA-REI.B.4B