Watch a comprehensive 31-minute video tutorial providing step-by-step solutions for a practice test on factoring by substitution. Learn to identify patterns like quadratic forms, make simple substitutions, factor using the substitution method, perform final substitutions, simplify, and check for additional factoring opportunities. Follow along as the instructor solves ten problems, each clearly marked with timestamps for easy navigation. Enhance your understanding of this important algebraic technique through detailed explanations and practical examples.