Use the substitution u=x3+5u = x^3 + 5u=x3+5 to find ∫3x2x3+5dx\displaystyle \int \frac{3x^2}{x^3 + 5} dx∫x3+53x2dx
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.