Show that 4+65−26\displaystyle \frac{4 + \sqrt{6}}{5 - 2\sqrt{6}}5−264+6 can be written as 26+13626 + 13\sqrt{6}26+136
134 exam-style questions on Edexcel AS 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.