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7 August, 08:20

4x^2-x-3=0

Solve by completing the square.

x = ?

+3
Answers (1)
  1. 7 August, 08:25
    0
    4x^2-x-3=0

    let us rewrite the equation in much simplified form:

    x^2 - 0.25x - 0.75 = 0

    x^2 - 0.25x = 0.75

    x^2 - 1/4 x + 1/64 = 3/4 + 1/64

    (x-1/8) ^2 = 49/64

    x - 1/8 = ± 49/64

    x1 = - 3/4

    x2 = 1
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