The first three terms, in ascending powers of xxx, in the expansion of
(1+px)n(1 + px)^n(1+px)n
are
1+18x+135x21 + 18x + 135x^21+18x+135x2
where n n\,n is a positive integer and p p\,p is a constant.
Find the values of n n\,n and ppp.
[6]
Markscheme
1.4.1 Sequences and Series - The Binomial Theorem Questions
108 exam-style questions on WJEC A Level Maths 1.4.1 Sequences and Series - The Binomial Theorem. Each one has a worked solution and a mark scheme showing where the marks go.