Find the value of x x\,x such that
1+xx=5 \frac{1+x}{x} = \sqrt{5} x1+x=5Giving your answer in the form a+b5a + b\sqrt{5}a+b5 where a a\,a and b b\,b are rational numbers.
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.