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Algebraic Expressions

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Question 53
(a).

Show that (2−3)(2+3)=1(2 - \sqrt{3})(2 + \sqrt{3}) = 1(2−3​)(2+3​)=1

[1]
(b).

Hence show that 2+32−3\displaystyle \frac{2 + \sqrt{3}}{2 - \sqrt{3}}2−3​2+3​​ can be written as 7+437 + 4\sqrt{3}7+43​

[2]
Markscheme

Algebraic Expressions Questions

  1. A Level
  2. /Maths
  3. /Algebraic Expressions

233 exam-style questions on Edexcel A Level Maths Algebraic Expressions, covering 1.1 Index Laws, 1.2 Expanding Brackets, 1.3 Factorising, 1.4 Negative and Fractional Indices, and 1.5 Surds. Each one has a worked solution and a mark scheme showing where the marks go.

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