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Real number x and y satisfy

x+(xy^2)=250y, x- (xy^2)= -240y. 

Enter all possible values of x, separated by commas.

 Oct 3, 2022
 #1
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\(x + xy^2 = 250y\)

\(x - xy^2 = -240y\)

\(2xy^2 = 490y\)

\(xy = 245\)

\(x + 60025 = 250y\) 

\(x - 60025 = -240y\)

\(120050 = 490y\)

\(y = 245\)

x = 1, 1225

 Oct 3, 2022

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