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1 October, 23:21

Solve for x. write both solutions, separated by a comma

2x^2-7x-4=0

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Answers (2)
  1. 2 October, 01:46
    0
    Hi again

    2x² - 7x - 4 = 0

    Again, all you have to do is factor left side

    (2x + 1) (x - 4) = 0

    Set factors equal to 0

    2x + 1 = 0 or x - 4 = 0

    2x = 0 - 1 or x = 0 + 4

    2x = - 1 0r x = 4

    x = - 1/2 or x = 4

    Answer : (-1/2, 4)
  2. 2 October, 02:32
    0
    2x^2-7x-4=0

    2x^2-8x+x-4=0

    2x (x-4) + 1 (x-4) = 0

    (2x+1) (x-4) = 0

    x=-1/2, 4
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