Ecuaciones de segundo grado. Hankeliana
| __ | 1. | (-2x+2)(x+5)=0 | | A. | x=-3 x=7 | | __ | 2. | (2x+6)(x-7)=0 | | B. | x=-2 x=3 | | __ | 3. | (2x+9)(-5x+12)=0 | | C. | x=5 x=3 | | __ | 4. | (4x-5)(7x+6)=0 | | D. | x=1 x=-5 | | __ | 5. | (6-x) (x+2)=0 | | E. | x=6 x=-2 | | __ | 6. | (8x+72)(x)=0 | | F. | x=0 x=2 | | __ | 7. | (10-2x)(4x-12)=0 | | G. | x=5/4 x= -6/7 | | __ | 8. | (22-x)(3x-15)=0 | | H. | x=22 x=5 | | __ | 9. | (x+2)(x-3)=0 | | I. | x=-9/2 x=12/5 | | __ | 10. | x(4x-8)=0 | | J. | x=-9 x=0 |
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