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September 29th, 2018, 06:46 PM   #1
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matrix elimination

What do you guys suggest to solve this question,please?
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September 29th, 2018, 07:47 PM   #2
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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
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September 29th, 2018, 07:54 PM   #3
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By inspection (using Romsek's idea) I'd say that zero and 3 are the numbers you are looking for.
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September 29th, 2018, 09:29 PM   #4
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ok now I totally understand how to solve it. thanks
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