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Name _____________________________
Date ___________________

Quadratic Equations
(Answer ID # 0469231)
Use the quadratic formula to solve each equation.

1.  
-28x2 + 36x + 104  =  120
2.   -10x2 + 12x - 9 = 0
3.  
-34
2

3
x2 - 26x - 
8
2

3
  =  0
4.  
16x2 + 32x  =  28x - 20
5.  
2
1

2
x2 + 
5
1

2
x + 
3
1

2
  =  0
6.  
-4
1

2
x2 - 
7
1

2
x - 6  =  0
7.   -6x2 + 4x - 7 = 0
8.  
-x2  =  -2x + 4
9.  
2x2 + 
3
2

3
x + 
1
2

3
  =  
3
1

3
x
10.  
-9x2 - 7  =  -10x
11.   -12x2 + 11x - 3 = 0
12.  
-18x2  =  -12x2 + 18x + 16
13.  
6x2 + 2x + 5  =  0
14.   x2 + 3x + 9 = 0
15.  
-11x2 + 2x  =  10

 

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