B=(x+y)(x+z)(y+z)+xyzB=(x+y)(x+z)(y+z)+xyz

B=(x2+xy+xz+yz)(y+z)+xyzB=(x2+xy+xz+yz)(y+z)+xyz

B=x2y+xy2+xyz+y2z+x2z+xyz+xz2+yz2+xyzB=x2y+xy2+xyz+y2z+x2z+xyz+xz2+yz2+xyz

B=(x2y+xy2+xyz)+(y2z+yz2+xyz)+(x2z+xz2+xyz)B=(x2y+xy2+xyz)+(y2z+yz2+xyz)+(x2z+xz2+xyz)

B=xy(x+y+z)+yz(x+y+z)+xz(x+y+z)B=xy(x+y+z)+yz(x+y+z)+xz(x+y+z)

B=(x+y+z)(xy+yz+xz)