What the binomial expansion is
What the binomial expansion is
A binomial is an expression with two terms, such as a+ba+ba+b or 2−5x2-5x2−5x. Expanding a binomial means multiplying it out and collecting like terms.
Step-by-step lessons on Edexcel A Level Maths The Binomial Expansion, covering 8.1 Pascal's Triangle, 8.2 Factorial Notation, 8.3 The Binomial Expansion, 8.4 Solving Binomial Problems, and 8.5 Binomial Estimation. Each one builds up to exam-style questions. Build fluency with the core pure algebra and calculus toolkit early, since almost every mechanics and statistics topic on the course depends on it.