Learn how to solve complex equations by employing substitution techniques to transform them into manageable quadratic forms. This 48-minute video lecture, part of a Precalculus and College Algebra series, provides a comprehensive guide to mastering this essential problem-solving strategy. Explore step-by-step demonstrations and practical examples that illustrate how to simplify and solve equations efficiently. Enhance your algebraic skills and build a strong foundation for advanced mathematical concepts through this in-depth tutorial.