Multiple choice The simplified form of the Boolean expression (X + Y + XY)(X + Z), is X + Y + Z XY + YZ X + YZ XZ + Y Reveal answer Fill a bubble to check yourself C Correct answer Explanation Simplify (X + Y + XY)(X + Z). Since X + XY = X, the first term becomes (X + Y). Then (X + Y)(X + Z) = X + XZ + YX + YZ = X + XZ + XY + YZ = X(1 + Z + Y) + YZ = X + YZ.