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9 October, 23:27

Solve for x

5x^2-x-4=0

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Answers (2)
  1. 9 October, 23:32
    0
    x = - 5/4 x=1

    Step-by-step explanation:

    5x^2 - x - 4 = 0

    Factor

    (5x+4) (x-1) = 0

    Using the zero product property

    5x+4 = 0 x-1 = 0

    5x=-4 x=1

    x = - 5/4 x=1
  2. 9 October, 23:38
    0
    x = - 0.8, 1

    Step-by-step explanation:

    5x² - x - 4 = 0

    5x² - 5x + 4x - 4 = 0

    5x (x - 1) + 4 (x - 1) = 0

    (5x + 4) (x - 1) = 0

    x = - ⅘, 1
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