-49/(-7 + n)^2 - 7/(-7 + n)
$$- \frac{7}{n - 7} - \frac{49}{\left(n - 7\right)^{2}}$$
49 7
- --------- - ------
2 -7 + n
(-7 + n)
-7*n
--------------
2
49 + n - 14*n
$$- \frac{7 n}{n^{2} - 14 n + 49}$$
n/(-7.0 + n) - n^2/(49.0 + n^2 - 14.0*n)
n/(-7.0 + n) - n^2/(49.0 + n^2 - 14.0*n)
-7*n
--------------
2
49 + n - 14*n
$$- \frac{7 n}{n^{2} - 14 n + 49}$$
-7*n
---------
2
(-7 + n)
$$- \frac{7 n}{\left(n - 7\right)^{2}}$$
Объединение рациональных выражений
[src]
/ 2 \
n*\49 + n - 14*n - n*(-7 + n)/
-------------------------------
/ 2 \
(-7 + n)*\49 + n - 14*n/
$$\frac{n \left(n^{2} - n \left(n - 7\right) - 14 n + 49\right)}{\left(n - 7\right) \left(n^{2} - 14 n + 49\right)}$$
n*(49 + n^2 - 14*n - n*(-7 + n))/((-7 + n)*(49 + n^2 - 14*n))
Рациональный знаменатель
[src]
/ 2 \ 2
n*\49 + n - 14*n/ - n *(-7 + n)
--------------------------------
/ 2 \
(-7 + n)*\49 + n - 14*n/
$$\frac{- n^{2} \left(n - 7\right) + n \left(n^{2} - 14 n + 49\right)}{\left(n - 7\right) \left(n^{2} - 14 n + 49\right)}$$
(n*(49 + n^2 - 14*n) - n^2*(-7 + n))/((-7 + n)*(49 + n^2 - 14*n))