Question

(n+1/2)(n²-1/2n+1/4) по формуле

Answer 1

$left(n+frac{1}{2}right)left(n^2-frac{1}{2}n+frac{1}{4}right)$

Используем (a+b)(a²-ab+b²)=a³+b³
n³+(1/2)³
n³+1/8