$$5 c - \frac{c}{c_{2}} - c_{2}$$
5.0*c - 1.0*c2 - 1.0*c/c2
Рациональный знаменатель
[src]-c + c2*(-c2 + 6*c) - c*c2
--------------------------
c2
$$\frac{1}{c_{2}} \left(- c c_{2} - c + c_{2} \left(6 c - c_{2}\right)\right)$$
Объединение рациональных выражений
[src]-c + c2*(-c2 + 6*c) - c*c2
--------------------------
c2
$$\frac{1}{c_{2}} \left(- c c_{2} - c + c_{2} \left(6 c - c_{2}\right)\right)$$
$$5 c - \frac{c}{c_{2}} - c_{2}$$
/c \
|--|
c2 \c2/
5*c - -- - ----
1 1
$$5 c - c_{2} - \frac{c}{c_{2}}$$
$$5 c - \frac{c}{c_{2}} - c_{2}$$
2
-c - c2 + 5*c*c2
-----------------
c2
$$\frac{1}{c_{2}} \left(5 c c_{2} - c - c_{2}^{2}\right)$$