What binomial expansion means
What binomial expansion means
A binomial has two terms, such as 1+3x1+3x1+3x or 9+6x9+6x9+6x. Expanding a binomial means rewriting a power like (1+u)n(1+u)^n(1+u)n as a series in ascending powers of xxx, starting with the constant term.
Step-by-step lessons on Edexcel A Level Maths Binomial Expansion, covering 4.1 Expanding (1 + x)^n, 4.2 Expanding (a + bx)^n, and 4.3 Using Partial Fractions. 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.