About This Lesson
20 practice problems on factoring trinomials with a leading coefficient of 1, including ones where a common factor comes out first, with a full answer key at the end. Ready to print for Algebra 1 class, homework or review. Need a different version for another class period, more problems, or a harder mix? The free generator linked below makes a new sheet every time, with Easy, Medium and Hard levels and up to 40 problems, and no account needed.