Solve: 22x+1−13(2x)−24=02^{2x+1} - 13(2^x) - 24 = 022x+1−13(2x)−24=0
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.