Ive been trying for 3 hours now and cant seem to find the eigenvalues, the long polynomials are getting me confused, the matrix is [2 2 1:1 3 1:1 2 2](adsbygoogle = window.adsbygoogle || []).push({});

So far i did [2-L 2 1:1 3-L 1:1 2 2-L] then I do the normal way to find the determinant but after that I get a horrible polynomial. Please help anyone!

Thanks

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# Eigenvalues of a 3x3 matrix

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