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Expanding Expressions of the Form (1+bx)^n | Year 2 Pure | A Level Maths

The general binomial expansion extends the binomial theorem from positive integer powers to any rational n. In this lesson you will learn how to expand (1 + bx)^n for any rational n, recognise that the expansion is valid for |bx| < 1, find the first few terms in ascending powers of x, and comment on the range of validity where required. This technique is widely used for approximation.

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Lesson Video On Expanding Expressions of the Form (1+bx)^n

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Lesson Resources For Expanding Expressions of the Form (1+bx)^n

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