Question

УПРОСТИТЕ (A-3B)*(A+3B)*(A^2+9B^2)*(A^4+81B^4) +3^8*b^8

Answer 1

(a-3b)(a+3b)=a^2-9b^2
(a^2-9b^2)(a^2+9b^2)=a^4-81b^4
(a^4-81b^4)(a^4+81b^4)=a^8-3^8*b^8
a^8-3^8*b^8+3^8*b^8=a^8
Ответ: a^8.