Question

Care este formula de la (a+b+c ) totul la a 3 a

Answer 1

[tex] (a+b+c)^{3} = [/tex]$a^{3}+b^{3}+c^{3}+3a^{2}b+3a^{2}c+3ab^{2}+3b^{2}c+3bc^{2}+3ac^{2}+ 6abc$