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-   -   matrix elimination (http://mymathforum.com/linear-algebra/345028-matrix-elimination.html)

Leonardox September 29th, 2018 06:46 PM

matrix elimination
 
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What do you guys suggest to solve this question,please?

romsek September 29th, 2018 07:47 PM

if elimination fails then the matrix has no inverse and thus it's determinant is 0.

solve the resulting quadratic for it's two roots

v8archie September 29th, 2018 07:54 PM

By inspection (using Romsek's idea) I'd say that zero and 3 are the numbers you are looking for.

Leonardox September 29th, 2018 09:29 PM

ok now I totally understand how to solve it. thanks :)


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