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Suppose real numbers x and y satisfy the system of equations:

 

\(x^2+y^2+x+y=8\)

\(xy+x+y=5\)

 

Find the value of \(x^4+y^4\).

 Jun 19, 2022
 #1
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x^4 + y^4 = 20

 Jun 19, 2022

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