Learn how to factor trinomials using the trial and error method in this comprehensive 26-minute video tutorial. Master the technique of reversing the FOIL process to express trinomials as the product of two binomials. Follow along with full solutions to practice problems divided into five sections, covering various difficulty levels and types of trinomials. Enhance your algebraic skills and problem-solving abilities with this step-by-step guide from GreeneMath.com.