X, Y, and Z refer to three Boolean variables whose value can be 0 or 1. Simplify given Boolean expressions using axioms and theorems of Boolean algebra. The simplified expressions need to be in a "Sum-of-product" format, and further simplification (i.e., reducing the number of terms in the "Sum-of-product" format) shouldn't be available anymore. Show each step with a brief description of what you did to reach the next step, as the example below shows: Example) AB'C + ABC = ACB' + ACB = AC (B' + B) = AC (commutativity) (distributivity) (complementarity) (1) X'Y (Y+ZX + Z'X')