Mister Exam

Factor polynomial -x^2-1

An expression to simplify:

The solution

You have entered [src]
   2    
- x  - 1
x21- x^{2} - 1
-x^2 - 1
Factorization [src]
(x + I)*(x - I)
(xi)(x+i)\left(x - i\right) \left(x + i\right)
(x + i)*(x - i)
Numerical answer [src]
-1.0 - x^2
-1.0 - x^2