What you need to know
Check yourself against these “I can” statements.
- I can use Pascal's triangle to find binomial coefficients
- I can use factorial and nCr notation
- I can expand (a + bx)^(n) for a positive whole number n
- I can find a single coefficient in a binomial expansion
- I can use a binomial expansion to estimate a value
Practise this topic
4 resourcesBinomial Expansion: Spot the Mistake
A student’s working with a mistake a real student would make (or, about 1 in 8 times, no mistake at all): tap the line you think is wrong, or No mistake, then reveal it, the corrected working and why. One level for each part of…
🧩 ConnectionsBinomial & Counting
nCr, nPr, factorial quotients, Pascal’s rule and coefficients in binomial expansions, grouped by their numerical value.
📋 Unit reviewBinomial Expansion: Exam Questions
Exam-style questions on the whole Binomial Expansion chapter, researched from real papers, with mark schemes in the examination’s notation (M, A, B, dM, ft, cso and the AO codes): first terms of (a + bx)ⁿ, coefficients and terms…
⬢ BlockbustersBinomial Expansion: Spot the Mistake Blockbusters
Blockbusters with the questions from the Binomial Expansion: Spot the Mistake worksheet: choose its levels for the ordinary hexagons and for the harder ★ ones. Show the answer and the worked solution, or play against the computer…
These are the pages for Binomial expansion in the A Level Maths scheme of work, following Pearson Edexcel A Level Mathematics (9MA0). Open this topic in Mr Wells Maths to see it alongside the rest of the course.