Equacions 2n grau senzilles 1
__1. x2 = -16A. x = -6 i x = 6
__2. x2 = -25B. x = -7 i x = 7
__3. x2 = -64C. x = -10 i x = 10
__4. x2 = 0D. No té solució
__5. x2 = 20E. x = 0
__6. x2 = 25F. x = -5 i x = 5
__7. x2 = 36G. x = -8.66 i x = -8.66
__8. x2 = 49H. x = -4.47 i x = 4.47
__9. x2 = 75I. No té solució
__10. x2 = 100J. No té solució
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