Найдите производный функции
(-3x^4-4x^3)'(-3x^2-3)-(-3x^4-4x^3)(-3x^2-3)'/(-3x^2-3)^2=36x^5+36x^3+36x^4+36x^2-18x^5-24x^4/(-3x^2-3)^2=18x^5+12x^4+36x^3+36x^2/(-3x^2-3)^2