Question

80 баллов!Помогите! Срочно!
(m+n)^2-p^2
4a^4-4a^22b^2+b^4
64m^6+240m^4n^2+300m^2n^4
25x^4-10x^2y^2+y^4
(x+3y)^2-z^2
9m^4+6m^2n+n^4
-x^-2nx^2-n^2
36p^4+12p^2jq^2+q^4
-9c^2+12cd^2+4d^4
a^3-6a^2b+12ab^2+8b^3