Answer
False.
Work Step by Step
False. The coefficients of $x$ and $y^2$ need to have the same sign. Canging to $-x=2y-y^2+5$ would correct the mistake.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.