Question

30 баллов! Сократите дробь:
6с+2с^3/с^2-9

Answer 1

$= \frac{2c(3 + c {}^{2}) }{c {}^{2} - 3 {}^{2}} = \frac{2c(3 + c {}^{2}) }{(c + 3)(c - 3)}$