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7 November, 07:10

Find the exact solutions to 2x^2=5x-1 by using the quadratic formula

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  1. 7 November, 07:26
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    The exact solution is (5 ± √17) / 4.

    Step-by-step explanation:

    2x^2 = 5x-1

    2x^2 - 5x + 1 = 0

    then,

    a = 2, b = - 5, c = 1

    Now, by using quadratic formula,

    (-b±√ (b²-4ac)) / (2a)

    (5 ± √ (-5) ^2 - 4 (2) (1)) / 2 * (2)

    (5 ± √17) / 4.
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