4-7, 4-8, 6-5, 6-6 Test Review

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

 $2m^2=-2m+12$  
Solve using the quadratic formula.

•  $x=2,-3$  
  

•  $x=3,-2$  
  

•  $x=1\pm\sqrt{13}$  

• No Solution

Tags

CCSS.HSA-REI.B.4B

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True
• False

Tags

CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula.

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

Simplify √-4

• 2i
• -2i
• 2
• 4i

Simplify -√-8

• -i√8
• -2i√2
• 2i√2
• -8i

Simplify

(4 − 7i) − (-3 + 6i)

• 7 − 13i

• 7 − i

• 1 − 13i

• 1 − i

Tags

CCSS.HSN.CN.A.2

What does i² =  ?

• 1
• -1
• √-1
• √1

Tags

CCSS.HSN.CN.A.1

Simplify:

(1 − 2i)(6 + 5i)

• 16 − 7i

• -16 + 7i

• -16 − 7i

• 16 + 7i

Tags

CCSS.HSN.CN.C.8

Find the conjugate of:
5 + 7i

• 5 − 7i
• -5 − 7i
• -5 + 7i

Tags

CCSS.HSN.CN.A.3