Understanding the concept of factoring is one of the most important concepts in algebra and higher math, but I've found that this is one of the biggest ideas students struggle with. The goal of this book is to help algebra and precalculus students understand factoring from the very basics of arithmetic to the precalculus level. Topics include: multiples, factors, GCF, difference of squares, perfect square trinomial, sum/difference of cubes, factoring by grouping, solving quadratics by factoring, solving quadratics by extracting square roots, solving quadratics by completing the square, quadratic formula, graphing quadratics and polynomials, multi-step and higher degree factoring, dividing polynomials, rational root theorem, descartes' rule of signs, fundamental theorem of algebra and more.