hey guys.. kinda confused on how to do this...
what values of k will make AB=BA
A = 2 5
B= 4 -5
what i did was multiply them together, seperately, and then tried to equate the k... didnt work
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what you did should have worked, you should get 6-3k=-9 and 5k-10=15
the answer is k-5.. how do u get that then?
nevermind i got it... thanks!
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