Factor polynomial x^2-20

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 2     
x  - 20

$$x^{2} - 20$$

x^2 - 20

Factorization [src]

/        ___\ /        ___\
\x + 2*\/ 5 /*\x - 2*\/ 5 /

$$\left(x - 2 \sqrt{5}\right) \left(x + 2 \sqrt{5}\right)$$

(x + 2*sqrt(5))*(x - 2*sqrt(5))

Numerical answer [src]

-20.0 + x^2

-20.0 + x^2