Question

4)4m^4n^2-64m^4p^2
5)3x^2-48xy+192y^2
6)-75b^6+30b^4-3b^2
7)2x^6–16y^9
8)a^3-a^2b-a^2+ab
9)x+4y+x^2-16y^2
10)x^5y-x^3y-x^5+x^3