Examen Ecuaciones 1º y 2º grado
| __ | 1. | 2/3·x-1/2=4/3-x | | A. | no tiene solución | | __ | 2. | 2·(2+x)-(6-7x)=13x-(1+4x) | | B. | x=3/4 | | __ | 3. | 3x+1=3-(2-2x) | | C. | x=3 | | __ | 4. | 3x/2+2x/3=(1+3x)/2 | | D. | x=0 | | __ | 5. | 5·(x-1)-(1-x)=2·(x-1)-4·(1-x) | | E. | infinitas soluciones | | __ | 6. | x-3=3-x | | F. | x=11/10 |
| __ | 7. | 2x2+5x+2=0 | | A. | x=-1; x=-2 | | __ | 8. | x2+1=0 | | B. | x=0; x=-4 | | __ | 9. | x2+3x+2=0 | | C. | x=i; x=-i | | __ | 10. | x2+4x=0 | | D. | x=1+i; x=1-i | | __ | 11. | x2-2x+2=0 | | E. | x=-1/2; x=-2 |
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