Page 59 - Math Course 3 (Book 1)

Solving Quadratic Equations

Skill Practice!

Solve each equation by taking the square root of each side. Round to the nearest tenth if necessary.

2
2
1. c – 12c + 36 = 4 2. w – 10w + 25 = 16

3. b + 16b + 64 = 9 4. y + 2y + 1 = 3
2
2

5. r + 4r + 4 = 7 6. a – 8a + 16 = 12
2
2

Find the value of c that makes each trinomial a perfect square.

2
2
7. g + 6g + c 8. y + 4y + c

9. a –14a + c 10. n – 2n + c
2
2

Solve each equation by completing the square. Round to the nearest tenth if necessary.

2
2
11. x + 4x – 12 = 0 12. v – 8v + 15 = 0

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2
13. q + 6q = 7 14. r – 2r = 15

2
15. m – 14m + 30 = 6

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