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Algebraic Expressions

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Question 67
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 5+232+3\displaystyle \frac{5 + 2\sqrt{3}}{2 + \sqrt{3}}2+3​5+23​​ can be written as 4−34 - \sqrt{3}4−3​

[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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