Factorise completely, giving your answer in the form 3x(a+bx)(a−bx)3x(a+bx)(a-bx)3x(a+bx)(a−bx), where a a\,a and b b\,b are positive integers: 147x−12x3147x - 12x^3147x−12x3
233 exam-style questions on Edexcel A 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.