Does anyone know where I can get help with more advanced binomials and trinomials ie reading up on them on the internet.
Oh and polynomials.
If you do maths as a hobby, maybe you should stay here in Math Help Forums and help other people with their maths problems... it's more enjoyable than reading websites and you learn a few things along the way.
The best place for me would be tutorial websites, or university websites. Try doing searches in google with those words in it.