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Real numbers  and  satisfy

 

\(\begin{align*} x + xy^2 &= 250y, \\ x - xy^2 &= -240y. \end{align*}\)
Enter all possible values of  separated by commas.

 May 28, 2020
 #1
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+1

As follows:

 

 May 28, 2020
 #2
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Thank you so much Alan!!!!!!!!!!!!!!!

 May 28, 2020

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