Factorizar el polinomio x^9-y^3

                                                                                                                                                                                                                                                                                    /       ____              ____\ /       ____              ____\              
/       ____                ____        \ /       ____                ____        \ /         ____                  ____          \ /         ____                  ____          \ /         ____                  ____          \ /         ____                  ____          \ |    9 /  3        ___ 9 /  3 | |    9 /  3        ___ 9 /  3 | /       ____\
|    9 /  3     /pi\     9 /  3     /pi\| |    9 /  3     /pi\     9 /  3     /pi\| |      9 /  3     /2*pi\     9 /  3     /2*pi\| |      9 /  3     /2*pi\     9 /  3     /2*pi\| |      9 /  3     /4*pi\     9 /  3     /4*pi\| |      9 /  3     /4*pi\     9 /  3     /4*pi\| |    \/  y     I*\/ 3 *\/  y  | |    \/  y     I*\/ 3 *\/  y  | |    9 /  3 |
|x + \/  y  *cos|--| + I*\/  y  *sin|--||*|x + \/  y  *cos|--| - I*\/  y  *sin|--||*|x + - \/  y  *cos|----| + I*\/  y  *sin|----||*|x + - \/  y  *cos|----| - I*\/  y  *sin|----||*|x + - \/  y  *cos|----| + I*\/  y  *sin|----||*|x + - \/  y  *cos|----| - I*\/  y  *sin|----||*|x + ------- + ---------------|*|x + ------- - ---------------|*\x - \/  y  /
\               \9 /                \9 // \               \9 /                \9 // \                 \ 9  /                \ 9  // \                 \ 9  /                \ 9  // \                 \ 9  /                \ 9  // \                 \ 9  /                \ 9  // \       2             2       / \       2             2       /              

$$\left(x + \left(\sqrt[9]{y^{3}} \cos{\left(\frac{\pi}{9} \right)} - i \sqrt[9]{y^{3}} \sin{\left(\frac{\pi}{9} \right)}\right)\right) \left(x + \left(\sqrt[9]{y^{3}} \cos{\left(\frac{\pi}{9} \right)} + i \sqrt[9]{y^{3}} \sin{\left(\frac{\pi}{9} \right)}\right)\right) \left(x + \left(- \sqrt[9]{y^{3}} \cos{\left(\frac{2 \pi}{9} \right)} + i \sqrt[9]{y^{3}} \sin{\left(\frac{2 \pi}{9} \right)}\right)\right) \left(x + \left(- \sqrt[9]{y^{3}} \cos{\left(\frac{2 \pi}{9} \right)} - i \sqrt[9]{y^{3}} \sin{\left(\frac{2 \pi}{9} \right)}\right)\right) \left(x + \left(- \sqrt[9]{y^{3}} \cos{\left(\frac{4 \pi}{9} \right)} + i \sqrt[9]{y^{3}} \sin{\left(\frac{4 \pi}{9} \right)}\right)\right) \left(x + \left(- \sqrt[9]{y^{3}} \cos{\left(\frac{4 \pi}{9} \right)} - i \sqrt[9]{y^{3}} \sin{\left(\frac{4 \pi}{9} \right)}\right)\right) \left(x + \left(\frac{\sqrt[9]{y^{3}}}{2} + \frac{\sqrt{3} i \sqrt[9]{y^{3}}}{2}\right)\right) \left(x + \left(\frac{\sqrt[9]{y^{3}}}{2} - \frac{\sqrt{3} i \sqrt[9]{y^{3}}}{2}\right)\right) \left(x - \sqrt[9]{y^{3}}\right)$$

((((((((x + (y^3)^(1/9)*cos(pi/9) + i*(y^3)^(1/9)*sin(pi/9))*(x + (y^3)^(1/9)*cos(pi/9) - i*(y^3)^(1/9)*sin(pi/9)))*(x - (y^3)^(1/9)*cos(2*pi/9) + i*(y^3)^(1/9)*sin(2*pi/9)))*(x - (y^3)^(1/9)*cos(2*pi/9) - i*(y^3)^(1/9)*sin(2*pi/9)))*(x - (y^3)^(1/9)*cos(4*pi/9) + i*(y^3)^(1/9)*sin(4*pi/9)))*(x - (y^3)^(1/9)*cos(4*pi/9) - i*(y^3)^(1/9)*sin(4*pi/9)))*(x + (y^3)^(1/9)/2 + i*sqrt(3)*(y^3)^(1/9)/2))*(x + (y^3)^(1/9)/2 - i*sqrt(3)*(y^3)^(1/9)/2))*(x - (y^3)^(1/9))