Mister Exam

Factor polynomial 5*x^2-4

An expression to simplify:

The solution

You have entered [src]
   2    
5*x  - 4
$$5 x^{2} - 4$$
5*x^2 - 4
Factorization [src]
/        ___\ /        ___\
|    2*\/ 5 | |    2*\/ 5 |
|x + -------|*|x - -------|
\       5   / \       5   /
$$\left(x - \frac{2 \sqrt{5}}{5}\right) \left(x + \frac{2 \sqrt{5}}{5}\right)$$
(x + 2*sqrt(5)/5)*(x - 2*sqrt(5)/5)
Numerical answer [src]
-4.0 + 5.0*x^2
-4.0 + 5.0*x^2