paulcollymore paulcollymore

18-09-2019
Mathematics

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simplify the following (x-y) ² - x+y

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zaidmir1987 zaidmir1987

18-09-2019

(x-y) ² - x+y

x ² - 2xy + y ² - x + y

or

x(x-1) + y(y+1) - 2xy

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