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1. |
Use the quadratic formula to solve x2 + 2x - 8 = 0. |
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A. |
-4, -2 |
B. |
-4, 2 |
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C. |
-2 |
D. |
-4 |
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Hint |
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2. |
Use the quadratic formula to solve 6x2 - x - 1 = 0. |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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3. |
Use the quadratic formula to solve 2x2 + 7x + 4 = 0. Approximate the solutions to the nearest hundredth. |
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A. |
1.28, 3.66 |
B. |
-5.56, -1.44 |
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C. |
-3.35, -0.15 |
D. |
-2.78, -0.72 |
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Hint |
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4. |
Use the quadratic formula to solve 3y2 + 2 = 8y. Approximate the solutions to the nearest hundredth. |
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A. |
0.43, 2.87 |
B. |
-0.64, 1.32 |
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C. |
0.56, 4.77 |
D. |
0.28, 2.39 |
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Hint |
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5. |
Use the quadratic formula to solve x2 + 4x + 5 = 0. |
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A. |
-1 |
B. |
5 |
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C. |
-1, -4 |
D. |
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Hint |
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