1) (3ab)(2a^2b) = 6a^3b^22) (-4x^2 y)(-7xy^2) = 28x^3y^33) (8ab^2)(1/4ac^2) = 2b^2/c^24) (6a^2b)(1/3bc^2) = 2a^2/c^2
1) (3ab)(2a^2b) = 6a^3b^2
2) (-4x^2 y)(-7xy^2) = 28x^3y^3
3) (8ab^2)(1/4ac^2) = 2b^2/c^2
4) (6a^2b)(1/3bc^2) = 2a^2/c^2