پاسخ : ☻ماراتن سوالات ریاضی دوم دبیرستان☺
نوشته ام دیگه نمیاره؟
http://latex.codecogs.com/gif.latex?%28\alpha%20-5%29^{-3}+%28\beta%20-5%29^{-3}%3D\frac{%28\alpha%20-5%29^{3}+%28\beta%20-5%29^{3}}{%28\alpha%20-5%29^{3}%28\beta%20-5%29^{3}}%3D\frac{-\alpha%20^3-\beta^3}{\alpha%20^3\beta%20^3}%3D\frac{-%28\alpha%20+b%29%28a^2-ab+b^2%29}{-7^3}%3D\frac{5*46}{343}
نوشته ام دیگه نمیاره؟
http://latex.codecogs.com/gif.latex?%28\alpha%20-5%29^{-3}+%28\beta%20-5%29^{-3}%3D\frac{%28\alpha%20-5%29^{3}+%28\beta%20-5%29^{3}}{%28\alpha%20-5%29^{3}%28\beta%20-5%29^{3}}%3D\frac{-\alpha%20^3-\beta^3}{\alpha%20^3\beta%20^3}%3D\frac{-%28\alpha%20+b%29%28a^2-ab+b^2%29}{-7^3}%3D\frac{5*46}{343}
