I have a homework question which is:
True or False: if $n$ is not even then $P(x)=x^n+ax^2+b$ has at most 3 roots
I know that the version of $n$ being even is true via some recursion and solving a squared function you will get 2 roots
But I can't seem to see if this one is true or false.
Can some one please help me?
Thank a-lot :)