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Solving Simple Quadratic Equations
供稿人: Robinson
__1. x2 + 2x + 1 = 0A. -3,-4
__2. x2 + 3x + 2 = 0B. -3,-2
__3. x2 + 5x + 6 = 0C. -2,-6
__4. x2 + 6x + 9 = 0D. -1,-2
__5. x2 + 7x + 10 = 0E. -5,-6
__6. x2 + 7x + 12 = 0F. -3
__7. x2 + 8x + 12 = 0G. -2,-5
__8. x2 + 10x + 24 = 0H. -4,-6
__9. x2 + 11x + 28 = 0I. -1
__10. x2 + 11x + 30 = 0J. -7,-4
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