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31 August, 16:17

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x? 1 plus-or-minus StartRoot 21 EndRoot i Negative 1 plus-or-minus StartRoot 19 EndRoot i 1 plus-or-minus 2 StartRoot 19 EndRoot i 1 plus-or-minus StartRoot 19 EndRoot i

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  1. 31 August, 18:06
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    -1±√19=x

    Step-by-step explanation:

    For cuadratic formula we can use the following equation

    x + (b/2) ±√ (b²/4-c) = 0

    The equation to solve x²-2x+20=0

    Where a=1

    b=-2

    c=20

    (2/2) ±√2²/4-20=-x

    -1±√19=x
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