Question

Сократите дробь: 5c^3-5/c-1

Answer 1

5c^3-5/c^-1=5c^-2c^-1=5/c^2*c^1=5/c

Answer 2

5c^3-5/c-1=5(с ^3-1)/c-1=5(c-1)(c ^ 2+c+1)/c-1=5 (c ^ 2+c+1)