Use the substitution u=x3+1u = x^3 + 1u=x3+1 to find ∫3x2(x3+1)3dx\int 3x^2(x^3 + 1)^3 dx∫3x2(x3+1)3dx
Practise Edexcel A Level Maths 11.5 Integration by Substitution with exam-style questions for A Level Maths. 59 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.