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1. |
Solve the equation (x -2)(x + 2) = 0. |
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A. |
2, 0 |
B. |
2 |
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C. |
-2 |
D. |
-2, 2 |
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Hint |
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2. |
Solve x2 - 4x - 5 = 0 by factoring. |
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A. |
1, 5 |
B. |
1, -5 |
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C. |
-1, 5 |
D. |
-1, -5 |
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Hint |
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3. |
Solve y2 + 8y + 16 = 0 by factoring. |
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A. |
4, 8 |
B. |
-4 |
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C. |
4 |
D. |
-4, 4 |
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Hint |
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4. |
Solve m2 - 2m = 15 by factoring. |
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A. |
-3, 5 |
B. |
5 |
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C. |
3 |
D. |
-5, 3 |
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Hint |
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5. |
Find a quadratic equation that has roots 6 + 2i and 6 - 2i. |
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A. |
x2 - 12x + 40 = 0 |
B. |
x2 +12x - 40 = 0 |
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C. |
x2 - 12x - 40 = 0 |
D. |
x2 + 12x + 40 = 0 |
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Hint |
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