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P-9x-8y-xy-2-find-p-




Question Number 5943 by sanusihammed last updated on 06/Jun/16
P = 9x + 8y  xy = 2    find  p.
$${P}\:=\:\mathrm{9}{x}\:+\:\mathrm{8}{y} \\ $$$${xy}\:=\:\mathrm{2} \\ $$$$ \\ $$$${find}\:\:{p}. \\ $$
Answered by FilupSmith last updated on 06/Jun/16
(1)  x=(2/y)  P=((18)/y)+8y    (2)   y=(2/x)  P=9x+((16)/x)
$$\left(\mathrm{1}\right)\:\:{x}=\frac{\mathrm{2}}{{y}} \\ $$$${P}=\frac{\mathrm{18}}{{y}}+\mathrm{8}{y} \\ $$$$ \\ $$$$\left(\mathrm{2}\right)\:\:\:{y}=\frac{\mathrm{2}}{{x}} \\ $$$${P}=\mathrm{9}{x}+\frac{\mathrm{16}}{{x}} \\ $$

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