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Binomial Expansion

Binomial Expansion

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Question 175
a.

Find the first four terms, in ascending powers of xxx, of the binomial expansion of 1+6x \sqrt{1 + 6x}\,1+6x​ giving each term in its simplest form.

[3]
b.

Use the expansion to find an approximation for 6\sqrt{6}6​, choosing a suitable value of xxx. There is no need to carry out the calculation.

[2]
Markscheme

Binomial Expansion Questions

  1. A Level
  2. /Maths
  3. /Binomial Expansion

408 exam-style questions 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 has a worked solution and a mark scheme showing where the marks go.

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