Need help with Factoring a polynomial please.
3x^2+7x+2, my answer (3x+1)(2x+1) but I'm not sure it could be (3x+1)(x+2). thanks for taking time to look it over.
use completing the square to factor this sum:
As you can see you've got a difference of squares which can be factored easily:
Collect the fractions and multiply the 2nd bracket by the factor 3:
A personal remark: I know there exist formulae which will give you the result directly and immediately. But they use the way I've demonstrated too - you only can't see it at once.