Video on how to find Derivative of (x^3 + 3)/(x^2 + 1)

Derivative of (2x^2 - 5)/(3x^2 + 1)

Previous Video 26: 

Derivative of (2x^2 - 5)/(3x^2 + 1)

Derivative of (x^3 + 2)/(x^3 - 1)

Next Video 28: 

Derivative of (x^3 + 2)/(x^3 - 1)