Question

Помогите пожалуйста(10x^2+1/3a^2)^3

Answer 1

(10x^2+1/3a^2)^3
1000x^6+3*100x^4*1/3a^2+3*10x^2*1/9a^4+1/27a^6
1000x^6+100a^2x^4+3 1/3a^4x^2+1/27a^6

Решал способом : (a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3