(a+b)^3-(a-b)^3 =

• (a+b)^3-(a-b)^3 = a^3+b^3 +3ab*a +3ab*b - a^3 +b^3 +3ab*a -3ab*b
  = 2*(b^3 -3ab*a)= 2b*(b^2 -3a^2)
• 12 years agoHelpfull: Yes(1) No(0)