Boolean algebra help with 3.21a and 3.21b

3.20 Alecbraicall prove or disprove th followving distributive idenities: (c) x(yEz)xyxz (d)x+(y=Z) = (x + y) (x+z) Simplify each of the following expressions using only the consensus theorem (or its dual): (a) BC'D' ABC +AC'D +AB'D + A'BD' (reduce to three terms) (b) WY WYZ +XY"Z + WX'Y (reduce to three terms) (c) (B+C+ D(A+ B+ C)(A' + C+ D)(B' +C+ D) 3.21 (c) A'BC BC'D'+A'CD + B'CD + A'BD 3.22 Factor Z ABC + DE + ACF + AD" + 'E, and simplify 11 to the form (X + X) (x + x)(X+ X+X X) (where cach X represents a literal). Now express Z as a minimum sum of products in the form: 3.23 Repeat Problem 3.22 for F= A,B + AC + BC, D' + BEF + BDF. the consensus thcorem: X'Y'Z+ XYZ