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# Bionomial Expansion;Please help me on this finding the coefficient question,thank you

Maths and statistics discussion, revision, exam and homework help.

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1. Bionomial Expansion;Please help me on this finding the coefficient question,thank you
http://s1116.photobucket.com/albums/...&current=4.png

Im so stuck please explain

thank you
2. Re: Bionomial Expansion;Please help me on this finding the coefficient question,thank
no-one??????
3. Re: Bionomial Expansion;Please help me on this finding the coefficient question,thank
(Original post by WoopWoop1212)
no-one??????
well you need to use the answer from part b) to help with c)

to get terms with x in c) you need either

a number from the first bracket times an x in the second bracket OR
an x from the first bracket times a number in the second bracket...
4. Re: Bionomial Expansion;Please help me on this finding the coefficient question,thank
im sorry, im still confused
5. Re: Bionomial Expansion;Please help me on this finding the coefficient question,thank
Example

You get the x's from 3*3x and 5x*2 = 9x + 10x = 19x
6. Re: Bionomial Expansion;Please help me on this finding the coefficient question,thank
(Original post by TenOfThem)
Example

You get the x's from 3*3x and 5x*2 = 9x + 10x = 19x
So do we just have to use the long way using pascals triangle or is there a formula? all these formula all seem jumbled up in my head right now
7. Re: Bionomial Expansion;Please help me on this finding the coefficient question,thank
(Original post by WoopWoop1212)
So do we just have to use the long way using pascals triangle or is there a formula?
You have found the 2 expansions in the previous parts of the question

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