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28 February, 22:06

2x^2-5x-3=0 what values of x make this equation true?

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Answers (2)
  1. 28 February, 22:11
    0
    x = - ½ and x = 3

    Step-by-step explanation:

    2x² - 5x - 3 = 0

    Rewrite - 5x as - 6x + x

    2x² - 6x + x - 3 = 0

    Factor out 2x from the first pair and 1 from the second pair

    2x (x - 3) + 1 (x - 3) = o

    Factor out (x - 3)

    (2x + 1) (x - 3) = 0

    Apply the Zero Product property

    2x + 1 = 0 x - 3 = 0

    Solve each equation

    2x + 1 = 0 x - 3 = 0

    2x = - 1 x = 3

    x = - ½

    The equation is true when x = - ½ and when x = 3.
  2. 28 February, 22:17
    0
    The values of x are - 1/2 and 3

    Step-by-step explanation:

    ∵ 2x² - 5x - 3 = 0

    By using factorization

    (2x + 1) (x - 3) = 0

    2x + 1 = 0 ⇒ 2x = - 1 ⇒ - 1/2

    x - 3 = 0 ⇒ x = 3

    ∴ The values of x are - 1/2 and 3
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