# Binomial Expansion Formula

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Examples, solutions, videos, activities, and worksheets that are suitable for A Level Maths.

The following figures show the binomial expansion formulas for (a + b)n and (1 + b)n. Scroll down the page for more examples and solutions. A-level Maths: Binomial expansion formula for positive integer powers: tutorial 1
In this tutorial you are shown how to use the binomial expansion formula for expanding expressions of the form (1+x)n. We look at expanding expressions where the power n is a positive integer.

A-level Maths : Extending the Binomial Expansion Formula: tutorial 2
In this tutorial you are shown how to use the binomial expansion formula for expanding expressions of the form A Level Maths. We look at expanding expressions where the power n is a positive integer.

Binomial Expansion : Pascal’s Triangle
In this tutorial you are shown how to use the binomial expansion formula for expanding expressions of the form A Level Maths using Pascal’s triangle when n is a small positive integer

Binomial Expansion : Rational Powers
In this tutorial you are shown how to use the binomial expansion for rational powers

Binomial Expansion : Validity for Rational Powers
In this tutorial you are shown how to work out the range of values for x for which the binomial expansion for rational powers is valid.

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