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Mathematics 7 Online
OpenStudy (anonymous):

Will Give Medals!!! 1. Solve x² + 4x + 8 = 0 2. Solve x2 - 7x = -13 3. Solve -2x2 +3x - 9 = 0 4. Solve 3x2 = -12x - 15 5. Solve -3x2 + 30x - 90 = 0

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