Toolkit 100
Factor Theorem
If P(x) is a polynomial and P(r)=0, then (x-r) is a factor of P(x).
To factor a polynomial of degree at least 3, one useful approach is to find a root r first. Then (x-r) is a factor, allowing further factorization.
Toolkit 100
If P(x) is a polynomial and P(r)=0, then (x-r) is a factor of P(x).
To factor a polynomial of degree at least 3, one useful approach is to find a root r first. Then (x-r) is a factor, allowing further factorization.