see the 11x now?We have only been taught how to do single bracket expansions, so this is my first bracket one, so please can you tell me if Ive done anything wrong?
P.S I dont know how to use the factorial method so Im using pascal's triangle. If anyone has any helpful points on the factorial method, please tell me
2) Multiply by first bracket:
Note: put in brackets to make it easier to read.
3) Put in order up to
I got the above answer, however the book's answers got and I cannot find the extra that I am missing
I am guessing the method that I used is correct or not? and how would this question be done using the and button on my calculator?
Thankyou very much!