Multiply out to obtain a sum of products prime means not or

Multiply out to obtain a sum of products (prime means \"not\" or \"compliment\"):

a) (W+X\'+Z\')(W\'+Y\')(W\'+X+Z\')(W+X\')(W+Y+Z)

b) (A+B+C+D)(A\'+B\'+C+D\')(A\'+C)(A+D)(B+C+D)

Solution

a)F(W,X,Y,Z)=W\'X\'Z+W\'YZ\'+WY\'Z\'+WXY\'+W\'XZ\'.

b)F(A,B,C,D)=A\'D+AC.