hey guys could you give me the way on how to solve part b) I actually solved it but I didn't like the way it took me some time to think about it could you show me a simple way and thanks
a) Write down the first 4 terms of the binomial expansion, in ascending powers of x
(1 +ax) ^n, n>2
b) Given that, in this expansion, the coefficient of x is 8 and the coefficient of x^2 is 30
find the value of n and a
