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• Publicado : 16 de marzo de 2011

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Ecuaciones

Ecuaciones de 1er grado

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20. (2x – 5) (3x – 2) = (6x + 1)(x – 5) + 1015

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25. (2x – 5) (2x + 5) = (2x - 3)2 + 206

26. (6x – 3) (2x – 4) = (4x + 3) (3x – 5) - 11

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1. x2 - 11x + 28 = 0 7. 10x2 - 7x + 1 = 0 13. 8x2 - 10x + 3 = 0
2. x2 - 15x + 56 = 0 8. 16x2 - 10x + 1 = 0 14. 18x2 - 21x + 5 = 0
3. x2 + 12x + 32 = 0 9. 12x2 + 4x - 5 = 0 15. 50x2 - 35x + 3 = 0
4. x2 + 16x + 60 = 0 10. 16x2 -24x + 9 = 0 16. 8x2 - 97x + 12 = 0
5. 5x2 + 34x - 39 = 0 11. 32x2 - 12x + 1 = 0 17. 49x2 - 90x - 775 = 0
6. x2 - 3x - 54 = 0 12. 18x2 - 3x - 10 = 0
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56. 400x4 - 41x2 + 1 = 0 62. [pic]
57. 225x4 - 61x2 + 4 = 0 63.[pic]
58. 4x4 - 101x2 + 25 = 0 64. [pic]
59. 16x4 - 73x2 + 36 = 0 65. [pic]
60. 2500x4 - 925x2 + 9 = 0 66. [pic]
61. 4x4 - 65x2 + 16 = 0
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123. – 50x2 - 15ax + a2 = 0
124. - x2 - 2ax + a2 - b2 = 0
125. - x2 - 2x + 1 - a2 = 0
126. - 8abx2 - 2(2b + a)x + 1 = 0
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Propiedades de las raíces de la
ecuación de segundo grado
1. Escribe una ecuación de segundo grado cuyas raíces sean 7 y 5.2. Escribe una ecuación de segundo grado con coeficientes enteros cuyas raíces sean 1/4 y 5/6.

3. Escribe una ecuación de segundo grado con coeficientes enteros cuyas raíces sean -4/5 y 5/3.

4. Calcula “m” en la ecuación 12x2 - mx + 6 = 0 , sabiendo que una de sus raíces es 2/3.

5. Calcula “m” en la ecuación 15x2 - 13x + m = 0 , sabiendo que una de sus raíces es...