Find A=(7-2-1 2 5 3)B=(-2-1 4 0 1 2) find AB BA
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Given A = [2,2,-4,-4,2,-4,2,-1,5] and B = [1,-1,0,2,3,4,0,1,2], then find BA and use this to solve the system of equations y + 2z = 7, x-y = 3, 2x + 3y + 4z = 17.
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