Expand and simplify: 3x(5+2x)(5−2x)3x(5 + 2x)(5 - 2x)3x(5+2x)(5−2x)
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.