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I have a quick question and I would really appreciate some guidence!

I have three matrix multiplied together like so

(horizontal matrix 1 k)(2x2 matrix 3 4 -2 1)(vertical matrix 1 k) equals 11

I'm asked to find two values for k.

I've tried multiplying them out but i end up with something like the vertical matrix 3-2k 4k+k^2 equals 11. Not sure what to do from there... Any ideas

!!

Thanks for your replies

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# Finding Variables within Matricies Question

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