Home/Algebra/Notable products and identities/Cube of a sum4. Notable products and identitiesCube of a sumLevel: fundamentalIn 4. Notable products and identitiesFormulaCopy LaTeX(a+b)3=a3+3a2b+3ab2+b3(a+b)^3=a^3+3a^2b+3ab^2+b^3(a+b)3=a3+3a2b+3ab2+b3Tagsalgebraalgebra formulaidentitiesproducts notableDetailExpansion of the cube of a binomial.Found an error? Contact us.Related formulasRelatedSum of cubesa3+b3=(a+b)(a2−ab+b2)a^3+b^3=(a+b)(a^2-ab+b^2)a3+b3=(a+b)(a2−ab+b2)Open formulaOpen in sectionRelatedBinomial theorem(a+b)n=∑k=0n(nk)an−kbk(a+b)^n=\sum_{k=0}^{n}\binom nk a^{n-k}b^k(a+b)n=k=0∑n(kn)an−kbkOpen formulaOpen in section