If you are given equation (2x^4+(1/x^3))^7, how do you find the constant term without having to expand it all? You dont have a calculator and you only have 10 minutes.

Printable View

- Apr 1st 2010, 01:18 PMSolaris123Constant term problem
If you are given equation (2x^4+(1/x^3))^7, how do you find the constant term without having to expand it all? You dont have a calculator and you only have 10 minutes.

- Apr 1st 2010, 01:37 PMPlato
- Apr 1st 2010, 01:48 PMSolaris123
I must say I don't understand, I mean, there are two values which you can use to make it be x^0 individually but do I have to combine both x in order to then solve for k? and what does that 7 over the k mean?

Edit: more accurately, what did you do and where can I learn how to do it and understand it? - Apr 1st 2010, 02:15 PMPlato
- Apr 1st 2010, 02:16 PMSolaris123
So I need to learn Binomial expansion, thank you very much.