/ 3 2\
(1 + 3*x)*\1 + x + 3*x + 3*x /
$$\left(3 x + 1\right) \left(x^{3} + 3 x^{2} + 3 x + 1\right)$$
(1.0 + 3.0*x)*(1.0 + x^3 + 3.0*x + 3.0*x^2)
Рациональный знаменатель
[src] / 3 2\
(1 + 3*x)*\1 + x + 3*x + 3*x /
$$\left(3 x + 1\right) \left(x^{3} + 3 x^{2} + 3 x + 1\right)$$
Объединение рациональных выражений
[src](1 + 3*x)*(1 + x*(3 + x*(3 + x)))
$$\left(3 x + 1\right) \left(x \left(x \left(x + 3\right) + 3\right) + 1\right)$$
/ 3 2\
(1 + 3*x)*\1 + x + 3*x + 3*x /
$$\left(3 x + 1\right) \left(x^{3} + 3 x^{2} + 3 x + 1\right)$$
/ 3 2\
(1 + 3*x)*\1 + x + 3*x + 3*x /
$$\left(3 x + 1\right) \left(x^{3} + 3 x^{2} + 3 x + 1\right)$$
$$\left(x + 1\right)^{3} \left(3 x + 1\right)$$
4 3 2
1 + 3*x + 6*x + 10*x + 12*x
$$3 x^{4} + 10 x^{3} + 12 x^{2} + 6 x + 1$$