
Elementary Algebra |
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| 1. x2
- y2 2. 25x2 - 1 3. 4x2 - 81y2 4. 16a2 - 49 5. 36 - x2 |
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6. x2
- 64 7. 9c2 - 4d2 8. x2 - 100y2 9. 25a2 - 4b2 10. 49x2 - 25y2 |
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Factor: | |
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