How to solve a system of 9 equations simultaneously using Sage [closed]

asked 2020-11-14 07:35:22 -0600

How to solve a system of 9 equations (with two variables and 9 unknown coefficients) simultaneously using Sage. Also, after solving the equations, how to graph the solution of the f(x, y) polynomial.

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Closed for the following reason duplicate question by tmonteil
close date 2020-11-14 09:43:55.456238