Solve the equation z−14=37\displaystyle z^{\frac{-1}{4}} = \frac{3}{7}z4−1=73, giving your answer as a fraction in its lowest terms.
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.