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25 November, 12:59

What are the approximate solutions of 2x^2 + x = 14, rounded to the nearest hundredth?

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  1. 25 November, 13:05
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    Hello,

    2x²+x-14=0

    Δ=1+4*14*2=113

    x = (-1-√113) / 4=-2,8839 ... ≈-2.88

    or x = (-1+√113) / 4=2,40753≈2.41
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