Formula cubului diferentei
![Formula Cubului Diferentei class=](https://ro-static.z-dn.net/files/d2d/b8020a7b953d0db062a15140a9b56076.png)
Rezolvare: (8-2)^3=8^3-3*8^2*2+3*8*2^2-2^3=
(8-2)^3=216
8^3-3*8^2+3*8*2^2-2^3=512-384+96-8=216