7x^2 + 3x / 5x + 9 = 12
(57+-✓57^2-4*7*108)/14=(57+-✓225)/14=(57+-15)/14=3; 72/14 ossia 36/7
About Post Author
7x^2 + 3x / 5x + 9 = 12
(57+-✓57^2-4*7*108)/14=(57+-✓225)/14=(57+-15)/14=3; 72/14 ossia 36/7