SOLUTION: Factor the following expression 21x^6+18x^2 I found out what the GCF (greatest common factor) was but I can't remember what to do next. The GCF was 3x^2

Question 615622: Factor the following expression 21x^6+18x^2 I found out what the GCF (greatest common factor) was but I can't remember what to do next. The GCF was 3x^2
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The first step in factoring a polynomial is "taking out the common factor" (if there is one).
Since and
you can take out as a common factor:

There is no way you can factor , so the factoring is complete.
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