Question

(99куб-61куб):38+99*61

Answer 1

38куб/38+99*61=38квадрат+99*61=1444+6039=7483

Answer 2

$frac{99^3-61^3}{38+99*61}=\\frac{(99-61)*(99^2+99*61+61^2)}{38}+99*61=\\frac{38*(99^2+99*61+61^2)}{38}+99*61=\\99^2+99*61+61^2+99*61=\\99^2+2*99*61+61^2=\\(99+61)^2=\\160^2=25600$