(40*40* 40-31*31*31)/(40*40+40*31+31*31)=?a simle calcutation

• (a^3-b^3)/(a^2+ab+b^2)
  a-b
  40-31=9
• 12 years agoHelpfull: Yes(10) No(1)
• 9 its simple
• 12 years agoHelpfull: Yes(1) No(1)
• 9...for every questn like this
  a3-b3/a2+ab+b2....
  answer will be a-b or a+b
  according to numerator
• 12 years agoHelpfull: Yes(1) No(0)
• 9
  (a^3-b^3)=(a-b)(a^2+ab+b^2)
  so dis question will simplify as (a-b)
  so ans is 40-31=9
• 12 years agoHelpfull: Yes(1) No(2)