How do I find all the zeros (real & complex) of a polynomial?
Ex. P(x)= x^2+ 25

Question

How do I find all the zeros (real & complex) of a polynomial?
Ex. P(x)= x^2+ 25

anonymous · Answer

Set P(x) to zero and solve. 
For example 

$$G(x) = x^2 +100$$
$$x^2=-100$$
$$x=\pm \sqrt{-100}$$


$$x=\pm \sqrt{100}\sqrt{-1}$$

$$x=\pm 10i$$

anonymous · Answer

How'd you get 100?

anonymous · Answer

That was an example problem. The mods have made it clear that helpers can't do the problems for the helpees, so the best I can do (unless they tell me that this is too much help too) is a similar problem to yours that shows all the steps. 

It is an example problem with the same steps, just different numbers.

anonymous · Answer

Ok thx