/ 1 7 + x \
(5 - x)*|----- + --------|
|5 - x 2|
\ (5 - x) /
--------------------------
7 + x
$$\frac{1}{x + 7} \left(- x + 5\right) \left(\frac{1}{- x + 5} + \frac{x + 7}{\left(- x + 5\right)^{2}}\right)$$
(5.0 - x)*(1/(5.0 - x) + (7.0 + x)/(5.0 - x)^2)/(7.0 + x)
Объединение рациональных выражений
[src] 12
---------------
(5 - x)*(7 + x)
$$\frac{12}{\left(- x + 5\right) \left(x + 7\right)}$$
-12
--------------
2
-35 + x + 2*x
$$- \frac{12}{x^{2} + 2 x - 35}$$
-12
--------------
2
-35 + x + 2*x
$$- \frac{12}{x^{2} + 2 x - 35}$$
-12
----------------
(-5 + x)*(7 + x)
$$- \frac{12}{\left(x - 5\right) \left(x + 7\right)}$$