Home/Algebra/Factorization/Perfect-square trinomial5. FactorizationPerfect-square trinomialLevel: fundamentalIn 5. FactorizationFormulaCopy LaTeXa2±2ab+b2=(a±b)2a^2\pm2ab+b^2=(a\pm b)^2a2±2ab+b2=(a±b)2Tagsalgebrafactorizationalgebra formulaDetailRecognizes the square of a binomial.Explore the ideaFound an error? Contact us.Related formulasRelatedSquare of a sum(a+b)2=a2+2ab+b2(a+b)^2=a^2+2ab+b^2(a+b)2=a2+2ab+b2Open formulaOpen in sectionRelatedSquare of a difference(a−b)2=a2−2ab+b2(a-b)^2=a^2-2ab+b^2(a−b)2=a2−2ab+b2Open formulaOpen in section