Simplify rational expression with higher exponents and determine excluded values

The video tutorial covers the process of factoring quadratic equations, including factoring by grouping and identifying excluded values. It explains how to solve quadratic equations and addresses the concept of imaginary numbers. The tutorial concludes with a discussion on excluded values and their significance in solving equations.

Explain the process of factoring by grouping as mentioned in the text.

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What is the significance of setting the denominator equal to zero?

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