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26 March, 19:12

Use the quadratic formula to solve x^2-5x+4. Show your work. Then describe the solution.

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  1. 26 March, 19:24
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    X = 13/2 or X = 7/2

    Step-by-step explanation:

    x^2-5x+4

    Where a = 1, b = - 5, c = 4

    X = - b (+,-) √b^2-4ac / 2a

    X = - (-5) (+,-) √ (-5) ^2-4 (1) (4) / 2 (1)

    X = 5 (+,-) √25-16 / 2

    X = 5 (+,-) √9/2

    X = 5+3/2 or X = 5 - 3/2

    X = 13/2 or X = 7/2

    It has got two solutions
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