[–] blueberryapple 0 points 1 point 1 point (+1|-0) ago (edited ago)
I would use this site to graph polynomials. You'll find out sooner or later that mostly everything about high school math is about "how would I graph this equation?" There's two main parts about polynomials you need to know about. One, the highest degree polynomials indicates how the ends of each function go. Even, both ends go up. Odd, left down and right up. Second, are the basic graphing properties, reflections and translations. Once you get those, you should be able to recognize and differentiate the different graphs. Next, it's all about finding the number of roots or numbers that will give you zero when you substitute for the independent variable. To figure this out, you will need to learn about the rational root theorem and apply a bit of guess and check. And that pretty much sums up all you really need to know about polynomials. How to graph and how to find the solutions to the equation. Later on in calculus, they will teach you that being absolutely precise is too tiresome and that being close enough is okay. And the question will then be "how close do you want it?" Where you can soon approximate values and roots using linear equations, and functions using polynomials.
[–] Rarschoute 0 points 1 point 1 point (+1|-0) ago
My go to response of Khan Academy was already stated so I have nothing to add except... Polynomials are pretty tricky, but, you got this, OP.
[–] cityfox 0 points 1 point 1 point (+1|-0) ago (edited ago)
NASCA International. Oh wait, you said poly nomials...
[–] 2wizard 0 points 4 points 4 points (+4|-0) ago (edited ago)
http://www.wolframalpha.com/input/?i=2x%5E2+-+3x+%2B+1+%3D+0&lk=4&num=1
[drops mic][walks away]
[–] disasterPony ago
The paid service and phone app give step by step solutions I believe.
[–] nice_tie 0 points 1 point 1 point (+1|-0) ago
This site is awesome. I must issue a warning. DO NOT LET THIS CRIPPLE YOU. I have seen people become more and more reliant on WA to the point that they don't understand the material. Please, please, PLEASE, don't let this do all the work for you. As the (currently) above post mentioned, check out Khan Academy if you want a full explanation.
[–] catsup 0 points 1 point 1 point (+1|-0) ago
Not sure if I'm late. Have you seen mathbff? https://www.youtube.com/user/mathbff