U substitution with extra x

The video tutorial explains the process of using substitution in integration. It begins by identifying the inside function and taking its derivative. The instructor then solves for X to replace it in the integral. The integration process is detailed, including the use of properties and simplification. Finally, the instructor presents the final solution, demonstrating how to substitute back the original variables.

Explain the difference property of integration as mentioned in the text.

What is the final answer after substituting back U into the integration result?