Разложение на множители
[src]
/ ___\ / ___\ / ___\ / ___\
| 1 I*\/ 3 | | 1 I*\/ 3 | | 1 I*\/ 3 | | 1 I*\/ 3 |
1*(a + 1)*(a - 1)*|a + - + -------|*|a + - - -------|*|a + - - + -------|*|a + - - - -------|
\ 2 2 / \ 2 2 / \ 2 2 / \ 2 2 /
$$\left(a - 1\right) 1 \left(a + 1\right) \left(a + \left(\frac{1}{2} + \frac{\sqrt{3} i}{2}\right)\right) \left(a + \left(\frac{1}{2} - \frac{\sqrt{3} i}{2}\right)\right) \left(a - \left(\frac{1}{2} - \frac{\sqrt{3} i}{2}\right)\right) \left(a - \left(\frac{1}{2} + \frac{\sqrt{3} i}{2}\right)\right)$$
(((((1*(a + 1))*(a - 1))*(a + (1/2 + i*sqrt(3)/2)))*(a + (1/2 - i*sqrt(3)/2)))*(a - (1/2 + i*sqrt(3)/2)))*(a - (1/2 - i*sqrt(3)/2))
/ 2\ / 2 \
(1 + a)*(-1 + a)*\1 + a + a /*\1 + a - a/
$$\left(a - 1\right) \left(a + 1\right) \left(a^{2} - a + 1\right) \left(a^{2} + a + 1\right)$$
(1 + a)*(-1 + a)*(1 + a + a^2)*(1 + a^2 - a)