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Repaso: Ecuaciones Cuadráticas y Aplicaciones
I . Solución por aplicaciones:
6x² - 19x - 7 = 0
x² - 6x + 5 = 4
2x² = 3x
3x² + 7x = 20
II. Solución completando el cuadrado: compresión
x² - 10x = 0
x² + 3x = 0
x² + 6x - 2 = 0
2x² - 4x + 3 = 0
x² + 8x - 3 = 0
3x² - 12x + 13 = 0
III. Solución por la fórmula cuadrática:
6x² - 19x - 7 = 0
x² + 8x - 3 = 0
2x + 3/2 = x²
3x² - 12x = 13
x² - 5/2 = 3x
IV. Calcule el discriminante de cada ecuación cuadrática:
2x² - 3x - 4 = 0
4x² - 4x = 1
2x² = 3x - 4
V. Ecuaciones con Radicales:
" 2x + 3 - " x - 2 = 2
" 2x + 5 + " x + 2 = 5
x + " x - 4 = 4
VI. Método de Sustitución o solución directa:
x10 + 6x5 - 16 = 0
x 2/3 - x 1/3 - 12 = 0
x4 - 5x² + 4 = 0
Respuestas:
I.
c.s { -1/3 , 7/2}
c.s { 3} doble
c.s {0 , 3/2}
c.s { -4 , 5/3}
II.
c.s {0 ,10}
c.s {0 , -3}
c.s {-3±" 11}
c.s {1± i" 2/2}
c.s {-4±" 19}
III.
c.s { 7/2 , -1/3}
x = -4 ±" 19
x = 1 ±" 10/2}
x = 2 ±i" 3/3
x = -3±" 19/2
IV.
x = 3 ±" 41/4
x = 1/2 raices dobles
x = 3 ±" -23/4
V.
1) x = 3 x = 11
2) x = 2
3) x = 4
VI.
x = 5" 2
x = -27 x = 64
x = 16 x = 1 ¿?
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Enviado por: | El remitente no desea revelar su nombre |
Idioma: | castellano |
País: | Puerto Rico |