murielbrazeau
murielbrazeau
30-11-2014
Mathematics
contestada
9xsquared-4 xsquared=-2
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konrad509
konrad509
30-11-2014
[tex]9x^2-4x^2=-2\\ 5x^2=-2\\ x^2=-\frac{2}{5}\\ x\in \emptyset[/tex]
Answer Link
lekhagummalla
lekhagummalla
30-11-2014
9x²-4x²=-2
5x²=-2
x²=-2/5
√x²=√-2/5
x=√-10/5
Answer Link
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