(b-3)(b-4)-(b+4)в кубе

Question

(b-3)(b-4)-(b+4)в кубе

Answer 1

(b-3)(b-4)-(b+4)^3=b^2-4b-3b+12-(b^3+12b^2+48b+64)=b^2-7b+12-b^3-12b^2-48b-64=-13b^2-b^3-55b-52