Question

Помогите пожалуйста номер 3 !

Answer 1

Ответ:

$5a^2b-5b^2=5b(a^2-b)\\\\4c^3d-9cd^3=cd(4c^2-9d^2)\\\\6x^2y^2-24x^2z^2=6x^2(y^2-4z^2)\\\\7ab^2-7ac^2=7a(b^2-c^2)\\\\-64m^2n-27n=-n(64m^2+27)\\\\2x^2y-16y=2y(x^2-8)\\\\2a^4c-16b^4c=2c(a^4-8b^4)\\\\9mn^6-117m=9m(n^6-13)\\\\7p^6q-7q^7=7q(p^6-q^6)$