Write down the conjugate of 2+32 + \sqrt{3}2+3.
Hence show that 5+232+3\displaystyle \frac{5 + 2\sqrt{3}}{2 + \sqrt{3}}2+35+23 can be written as 4−34 - \sqrt{3}4−3
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.