/ ___\ / ___\ / ___\ / ___\
(x + 4)*(x - 4)*\x + 2 + 2*I*\/ 3 /*\x + 2 - 2*I*\/ 3 /*\x + -2 + 2*I*\/ 3 /*\x + -2 - 2*I*\/ 3 /
$$\left(x - 4\right) \left(x + 4\right) \left(x + \left(2 + 2 \sqrt{3} i\right)\right) \left(x + \left(2 - 2 \sqrt{3} i\right)\right) \left(x + \left(-2 + 2 \sqrt{3} i\right)\right) \left(x + \left(-2 - 2 \sqrt{3} i\right)\right)$$
(((((x + 4)*(x - 4))*(x + 2 + 2*i*sqrt(3)))*(x + 2 - 2*i*sqrt(3)))*(x - 2 + 2*i*sqrt(3)))*(x - 2 - 2*i*sqrt(3))
/ 2 \ / 2 \
(-4 + x)*(4 + x)*\16 + x - 4*x/*\16 + x + 4*x/
$$\left(x - 4\right) \left(x + 4\right) \left(x^{2} - 4 x + 16\right) \left(x^{2} + 4 x + 16\right)$$
(-4 + x)*(4 + x)*(16 + x^2 - 4*x)*(16 + x^2 + 4*x)