Factor polynomial z^2-0.49

You have entered [src]

 2    49
z  - ---
     100

$$z^{2} - \frac{49}{100}$$

z^2 - 49/100

Factorization [src]

(x + 7/10)*(x - 7/10)

$$\left(x - \frac{7}{10}\right) \left(x + \frac{7}{10}\right)$$

(x + 7/10)*(x - 7/10)

Rational denominator [src]

           2
-49 + 100*z 
------------
    100

$$\frac{100 z^{2} - 49}{100}$$

(-49 + 100*z^2)/100

Combinatorics [src]

(-7 + 10*z)*(7 + 10*z)
----------------------
         100

$$\frac{\left(10 z - 7\right) \left(10 z + 7\right)}{100}$$

(-7 + 10*z)*(7 + 10*z)/100

Combining rational expressions [src]

           2
-49 + 100*z 
------------
    100

$$\frac{100 z^{2} - 49}{100}$$

(-49 + 100*z^2)/100

Numerical answer [src]

-0.49 + z^2

-0.49 + z^2