1 1 1 1 1
--------- + --------------- + --------------- + ---------------- + -----------------
x*(3 + x) (3 + x)*(6 + x) (6 + x)*(9 + x) (9 + x)*(12 + x) (12 + x)*(15 + x)
$$\frac{1}{\left(x + 12\right) \left(x + 15\right)} + \frac{1}{\left(x + 9\right) \left(x + 12\right)} + \frac{1}{\left(x + 6\right) \left(x + 9\right)} + \frac{1}{\left(x + 3\right) \left(x + 6\right)} + \frac{1}{x \left(x + 3\right)}$$
1/(x*(3.0 + x)) + 1/((3.0 + x)*(6.0 + x)) + 1/((6.0 + x)*(9.0 + x)) + 1/((12.0 + x)*(9.0 + x)) + 1/((12.0 + x)*(15.0 + x))
Рациональный знаменатель
[src] / / 2 \ 2 2 \ 2 2 2
(12 + x)*(15 + x)*\(9 + x)*(12 + x)*\x*(3 + x) *(6 + x) + (6 + x)*(9 + x)*(x*(3 + x) + (3 + x)*(6 + x))/ + x*(3 + x) *(6 + x) *(9 + x)/ + x*(3 + x) *(6 + x) *(9 + x) *(12 + x)
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2 2 2 2
x*(3 + x) *(6 + x) *(9 + x) *(12 + x) *(15 + x)
$$\frac{1}{x \left(x + 3\right)^{2} \left(x + 6\right)^{2} \left(x + 9\right)^{2} \left(x + 12\right)^{2} \left(x + 15\right)} \left(x \left(x + 3\right)^{2} \left(x + 6\right)^{2} \left(x + 9\right)^{2} \left(x + 12\right) + \left(x + 12\right) \left(x + 15\right) \left(x \left(x + 3\right)^{2} \left(x + 6\right)^{2} \left(x + 9\right) + \left(x + 9\right) \left(x + 12\right) \left(x \left(x + 3\right)^{2} \left(x + 6\right) + \left(x + 6\right) \left(x + 9\right) \left(x \left(x + 3\right) + \left(x + 3\right) \left(x + 6\right)\right)\right)\right)\right)$$
Объединение рациональных выражений
[src]$$\frac{5}{x \left(x + 15\right)}$$
$$\frac{5}{x \left(x + 15\right)}$$
1 1 1 1 1
--------- + --------------- + --------------- + ---------------- + -----------------
x*(x + 3) (x + 3)*(x + 6) (x + 6)*(x + 9) (x + 9)*(x + 12) (x + 12)*(x + 15)
$$\frac{1}{\left(x + 12\right) \left(x + 15\right)} + \frac{1}{\left(x + 9\right) \left(x + 12\right)} + \frac{1}{\left(x + 6\right) \left(x + 9\right)} + \frac{1}{\left(x + 3\right) \left(x + 6\right)} + \frac{1}{x \left(x + 3\right)}$$
$$\frac{5}{x^{2} + 15 x}$$
$$\frac{5}{x \left(x + 15\right)}$$
1 1 1 1 1
--------- + --------------- + --------------- + ---------------- + -----------------
x*(x + 3) (x + 3)*(x + 6) (x + 6)*(x + 9) (x + 9)*(x + 12) (x + 12)*(x + 15)
$$\frac{1}{\left(x + 12\right) \left(x + 15\right)} + \frac{1}{\left(x + 9\right) \left(x + 12\right)} + \frac{1}{\left(x + 6\right) \left(x + 9\right)} + \frac{1}{\left(x + 3\right) \left(x + 6\right)} + \frac{1}{x \left(x + 3\right)}$$