-5 - x
----------
x*(-5 + x)
$$\frac{- x - 5}{x \left(x - 5\right)}$$
$$- \frac{2}{x - 5} + \frac{1}{x}$$
-(5 + x)
----------
x*(-5 + x)
$$- \frac{x + 5}{x \left(x - 5\right)}$$
5.0/(x^2 + 5.0*x) + (15.0 + x)/(25.0 - x^2)
5.0/(x^2 + 5.0*x) + (15.0 + x)/(25.0 - x^2)
Объединение рациональных выражений
[src]
2
125 - 5*x + x*(5 + x)*(15 + x)
-------------------------------
/ 2\
x*(5 + x)*\25 - x /
$$\frac{x \left(x + 5\right) \left(x + 15\right) - 5 x^{2} + 125}{x \left(- x^{2} + 25\right) \left(x + 5\right)}$$
(125 - 5*x^2 + x*(5 + x)*(15 + x))/(x*(5 + x)*(25 - x^2))
-5 - x
--------
2
x - 5*x
$$\frac{- x - 5}{x^{2} - 5 x}$$
Рациональный знаменатель
[src]
5 15 x
-------- + ------- + -------
2 2 2
x + 5*x 25 - x 25 - x
$$\frac{x}{- x^{2} + 25} + \frac{5}{x^{2} + 5 x} + \frac{15}{- x^{2} + 25}$$
2 / 2 \
125 - 5*x + (15 + x)*\x + 5*x/
--------------------------------
/ 2\ / 2 \
\25 - x /*\x + 5*x/
$$\frac{- 5 x^{2} + \left(x + 15\right) \left(x^{2} + 5 x\right) + 125}{\left(- x^{2} + 25\right) \left(x^{2} + 5 x\right)}$$
(125 - 5*x^2 + (15 + x)*(x^2 + 5*x))/((25 - x^2)*(x^2 + 5*x))