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# HELP NEEDED NOW PLZ AND THX

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Real numbers x and y satisfy

\begin{align*} x + xy^2 &= 250y, \\ x - xy^2 &= -240y. \end{align*}

find all values of x separated by commas

I've been really stuck and whatever I did didn't get me anywhere. Thank you to anyone who answers :)

Jul 24, 2020

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Use elimination method

$$x+x+xy^2+-xy^2=250y+-240y\\ 2x=10y\\ x=5y\\$$

Now sub that into either original equation and solve for y there might be more than one answer.

See if you can go from there.