Binomial expansion formula for positive integer powers : tutorial 1 : ExamSolutions

In this tutorial you are shown how to use the binomial expansion formula for expanding expressions of the form (1+x)^n. We look at expanding expressions where the power n is a positive integer.

For this and more maths revision videos on the binomial expansion, other topics and worked solutions to maths past papers goto ExamSolutions at http://www.examsolutions.co.uk/

Category:

Education

Tags:

• binomial
• expansion
• formula
• examsolutions
• exam solutions
• A-level
• maths
• revision

[ymsphaa]

Mate, your mouse pointer got cold and it's shivering, may be your computer hasn't wormed up yet.

Just kidding, thanks for your help anyways.

[ExamSolutions]

@ymsphaa If it was then it would be going mad now. -5 here at present.

[kiddyflo]

hey buddy... i thought you only use that specific formula when dealing with negative powers or numbers >1 ... what about the formula with the combinations and things where you use pascals triangle...? :) good video btw

[ExamSolutions]

@kiddyflo This is a universal formula and can be used all the time. However, it may be easier to use the combinations method or Pascals triangle when the power n is positive.

[dimflamingo]

You've probably saved me a lot of marks as I tend to drop quite a few when using Pascal's triangle. This is much easier and cleaner so thanks a lot.

[ExamSolutions]

cool

[Hellfire257]

Thank you very much - you explained it a lot clearer than my teacher did!

[kiddyflo]

@ExamSolutions muchas gracias... :)

[iamsopoor9]

hoooray!

[LammonNomaer]

Very well done. Similarly to Hellfire257, I agree that you explained the concept better than my math teacher did...

[ExamSolutions]

Thanks - glad to be of some help