Video examples, using algebraic techniques to simplify fractions for integration with practice questions.

https://www.khanacademy.org/math/integral-calculus/integration-techniques/integrate-partial-fraction-expan/v/partial-fraction-expansion-to-integrate

https://www.khanacademy.org/math/integral-calculus/integration-techniques/integrate-partial-fraction-expan/v/partial-fraction-expansion-to-integrate