Question

a)xy+xz+6y+6z
б)4a+4b+bx+ax

Answer 1

а)xy+xz+6y+6z=x(y+z)+6(y+z)=(x+6)(y+z)
б)4a+4b+bx+ax=4(a+b)+x(b+a)=(4+x)(a+b)