Show that 13+223+2\displaystyle \frac{13 + 2\sqrt{2}}{3 + \sqrt{2}}3+213+22 can be written as 5−25 - \sqrt{2}5−2
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.