Greatest Common Factor for Monomials. Find the greatest common factor for each group of monomials.
Problem 1: 16x z, 40xz , 72z
Problem 2: 15x y - 9xy +6x y
Problem 3: a(a+1) - 3(a+1)
Factoring a Difference of Two squares. Factor each polynomial.
Problem 4: 9a -64b
Problem 5: x y + 2x y +xy