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Find all pairs (x,y) of real numbers such that x + y = 10 and x^2 + y^2 = 56 + 2xy.

For example, to enter the solutions (2,4) and (-3,9), you would enter "(2,4),(-3,9)" (without the quotation marks).

 May 31, 2021
 #1
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The solutions are (4,6), (6,4).

 May 31, 2021

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