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15-07-2016
Mathematics

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

Respuesta :

15-07-2016

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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