Quadratic Formula

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

QUESTION 5

• A
• B 
• C 
• D 

• A
• B
• C
• D

Solve x² - 5x + 10 = 0

• (5 - i√15)/2  ,  (5 + i√15)/2
• (5 - √15)/2  ,  (5 + √15)/2
• (5 - i√65)/2  ,  (5 + i√65)/2
• (5 - √65)/2  ,  (5 + √65)/2

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

 $2r^2+3r-1=0$  

Solve using the quadratic equation.

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

•  $x=2,-3$  
  

•  $x=3,-2$  
  

•  $x=1\pm\sqrt{13}$  

• No Solution

Solve using the quadratic formula...

9x² = 4 + 7x

• 
• 
• 
• No solution

Solve using the quadratic formula:

4x² + 4x + 1 = 0

• x = -½

• x = -2

• x = 0

• x = ½

 $b^2-4ac$  is called the . . .

• Square root

• Quadratic formula

• X-intercepts

• Discriminant