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Intermediate Math Concepts
4.2 Solving Quadratic Equations w/ Inverse Operations
Name: ______________________
Date: _______________________
Directions: Solve each quadratic equation with Inverse Operations. Remember to use your plus/minus
signs appropriately.
1. x2 – 4 = 0
2. -x2 + 9 = 0
3. x2 – 12 = 0
4. 3x2 + 10 = 58
5. 14 – 2x2 = -2
6. 4x2 – 7 = 3x2 + 3
7.
1 2
x – 5 = 15
2
8.
-8 - x 2
= -3
3
9. 5x2 – 10 = 8 + 2x2
1
2
10. 0 = (x + 2)2 – 16
11. 0 = 3(x – 4)2 + 12
12. 0 = - (x – 1)2 + 8
13. 12 = 4(x + 3)2 – 4
14. 5 – (x + 8)2 = -2
15. -2(x – 5)2 = 50
16. -18 = 5(x + 4)2 – 23
17. 7 + 3(x – 3)2 = 28
18. 2(3x + 5)2 – 8 = 10
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