Ecuaciones de 2º grado parejas
| __ | 1. | (x+3)2 = 16 | | A. | x=9 , x = -1 | | __ | 2. | (x+6)2=100 | | B. | x=1, x= -7 | | __ | 3. | (x-2)2 = 9 | | C. | x=5 , x= -1 | | __ | 4. | (x-4)2 =25 | | D. | x=4 , x =-16 | | __ | 5. | -(x-1)·(x-3) = 0 | | E. | x=1 , x= 3 | | __ | 6. | 2x2=18 | | F. | x= 1/7 , x= -2 | | __ | 7. | 3(x+5)·(3x+6)=0 | | G. | x= -5, x= -2 | | __ | 8. | 7x2 = 2 - 13x | | H. | sin solución | | __ | 9. | 7x2 =5x | | I. | x=0 , x=5/7 | | __ | 10. | x2 +3 = -3(x+1) | | J. | x=3 , x=-3 |
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