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]

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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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