x-3 - 3-y xy-[tex] x^{2} [/tex] xy-[tex] y^{2} [/tex]. Created by Бетмен221099. algebra-ru

tex]...

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August 2021 1 2 Report

x-3 - 3-y
xy-[tex] x^{2} [/tex] xy-[tex] y^{2} [/tex]

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nafanya2014

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$= \frac{x-3}{x(y-x)}- \frac{3-y}{y(x-y)} = \frac{-y(x-3)-x(3-y)}{xy(x-y)}= \frac{-xy+3y-3x+xy}{xy(x-y)}= \\ = \frac{3(y-x)}{xy(x-y)} = \frac{-3}{xy}$

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