Solve: 32x+1−24(3x)−27=03^{2x+1} - 24(3^x) - 27 = 032x+1−24(3x)−27=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.