Show that 6+22=143−2\displaystyle 6+2\sqrt{2} = \frac{14}{3-\sqrt{2}}6+22=3−214.
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.