Binomial Expansion | 40 Worked Examples | Edexcel A-Level Maths

40 progressive Edexcel A-Level (9MA0) binomial expansion questions with full mark-scheme style worked solutions.

What’s inside:
Easy: expanding brackets with positive-integer powers using Pascal’s triangle and nCr, finding single coefficients and terms, and a first look at fractional and negative powers.
Medium: the general binomial series for fractional and negative n, factoring out a constant for (a+bx)^n, stating the range of validity, approximating roots, and finding an unknown power or coefficient.
Hard: partial fractions combined with binomial expansion, products of two expansions, the term independent of x, negative-index problems, and full synoptic questions with validity.

Every solution keeps one atomic step per line with an annotation on each, computes each binomial coefficient explicitly, and places B1, M1 and A1 marks where the mark scheme awards them.

Ideal for: Year 13 students sitting Edexcel A-Level Mathematics (9MA0) Paper 1 / Paper 2 Pure, plus tutors and teachers building targeted practice. Print-friendly, hand straight to students.