Find the value of y y\,y such that
3+yy=7 \frac{3+y}{y} = \sqrt{7} y3+y=7Giving your answer in the form a+b7a + b\sqrt{7}a+b7 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.