20-12-2020
Mathematics

contestada

If (x + y)^2 = 45 and xy = 10, what is (x - y)^2?

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20-12-2020

Answer:

[tex]\binom{x = \sqrt{5}, y = 2\sqrt{5}}{x = -\sqrt{5}, y = -2\sqrt{5}}[/tex]

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