26-05-2016
Mathematics

contestada

[tex] \frac{2z( x^{2} - y}{xy + z} [/tex] these are the numbers for the variables x=-1 y=6 z=4

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Giantkiller Giantkiller

26-05-2016

i use those variables in the second xy+z and i got this

−12x^2z+12yz+4

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