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¿como se factoriza 12m²+m-6=0?paso por paso ?

1 Answer

Rating
  • H EAT
    Lv 7
    1 decade ago
    Favorite Answer

    Como se trata de una ecuación de segundo grado, hay que encontrar las ríaces que la anulan. Para ello usando la fórmula x = [-b±√b²-4ac)]/2a, se tiene

    x = {-1 ± √[1² - 4 . 12 (- 6)]} / 2 . 12

    x = [-1 ± √(1 + 288)] / 24

    x = (-1 ± √289) / 24

    x = (-1 ± 17) / 24

    Ahora quedan las dos raíces

    x1 = (-1 + 17) / 24 = 16/24 = 2/3

    x2 = (-1 - 17) / 24 = -18/24 = -3/4

    Ahora se fuede factorizar poniendo

    12m² + m - 6 = (m - 2/3) (m + 3/4)

    Saludos.

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