Factor polynomial x^4-16

You have entered [src]

 4     
x  - 16

$$x^{4} - 16$$

x^4 - 16

Factorization [src]

(x + 2)*(x - 2)*(x + 2*I)*(x - 2*I)

$$\left(x - 2\right) \left(x + 2\right) \left(x + 2 i\right) \left(x - 2 i\right)$$

(((x + 2)*(x - 2))*(x + 2*i))*(x - 2*i)

Combinatorics [src]

                 /     2\
(-2 + x)*(2 + x)*\4 + x /

$$\left(x - 2\right) \left(x + 2\right) \left(x^{2} + 4\right)$$

(-2 + x)*(2 + x)*(4 + x^2)

Numerical answer [src]

-16.0 + x^4

-16.0 + x^4