Use the substitution u=x4+2u = x^4 + 2u=x4+2 to find ∫4x3x4+2dx\displaystyle \int \frac{4x^3}{x^4 + 2} dx∫x4+24x3dx
221 exam-style questions on WJEC A Level Maths 3.7 Integration (A-level only), covering 3.7.1 Integration (A-level only), 3.7.2 Integration (A-level only), 3.7.3 Integration (A-level only), 3.7.4 Integration (A-level only), 3.7.5 Integration (A-level only), and 3.7.6 Integration (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.