Integration By Substitution CalculatorBy Daniel Sir / September 13, 2026 Integration by Substitution u-substitution guide Integral to solve: (2x)*(x^2+1)^5 Guide Substitution Suggested u-substitution Let u = Then du = Steps: 1. Identify inner function as u2. Compute du3. Substitute and simplify4. Integrate in terms of u5. Back-substitute x