captainK
captainK
24-10-2016
Mathematics
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x^2+x-5=0 completing the square
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Аноним
Аноним
24-10-2016
I hope this helps you
x^2+x-5=0
disctirminant = 1^2-4.1. (-5)
disctirminant = 1+20=21
x1= -1+ square root of 21/2
x2= -1- square root of 21/2
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