Assume that the matrices are partitioned conformably for block multiplication. Find formulas for X, Y, and Z in terms of A, B, and C, and justify your calculations. In some cases, you may need to make assumptions about the size of a matrix in order to produce a formula.

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[68][8 A B X Y 0 I 0 0 Z I 1 = [6 I 0 0 0 I