Are the roots of a polynomial given by the function f(x) defined as the values for x where f(x)=0?(adsbygoogle = window.adsbygoogle || []).push({});

Does that mean f(x)=x^2 has only one root? Even though for every other value of x except zero there are two values for x that you can input to output a particular value for f(x).

What about complex numbers?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# What Exactly are the Roots of a Polynomial?

**Physics Forums | Science Articles, Homework Help, Discussion**