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28-09-2014
Mathematics

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Find the value of the discriminant of each quadratic equation:
-2x^2-x-1=0

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konrad509 konrad509

29-09-2014

[tex]\Delta=b^2-4ac\\ \Delta=(-1)^2-4\cdot(-2)\cdot(-1)=1-8=-7[/tex]

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