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.

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- April 1st 2010, 12:18 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.

- April 1st 2010, 12:37 PMPlato
- April 1st 2010, 12:48 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? - April 1st 2010, 01:15 PMPlato
- April 1st 2010, 01:16 PMSolaris123
So I need to learn Binomial expansion, thank you very much.