[WoopWoop1212]

http://s1116.photobucket.com/albums/...&current=4.png

Im so stuck please explain

thank you

[WoopWoop1212]

no-one??????

[the bear]

(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...

[WoopWoop1212]

im sorry, im still confused

[TenOfThem]

Example



You get the x's from 3*3x and 5x*2 = 9x + 10x = 19x

[WoopWoop1212]

(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

[TenOfThem]

(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