3,14,39,_?

• Ans: 84
  Formula : n^3 + n^2 + n
  Soln : 1^3+1^2+1 = 3
  2^3+2^2+2 = 8+4+2 = 14
  3^3+3^2+3 = 27+9+3 = 39
  4^3+4^2+4 = 64+16+4 = 80
• 13 years agoHelpfull: Yes(0) No(0)
• (1*1*1)+(1*2)=3
  (2*2*2)+(2*3)=14
  (3*3*3)+(3*4)=39
  like wise
  (4*4*4)+(4*5)=84
  therefore answer is 84
• 8 years agoHelpfull: Yes(0) No(0)
• 1*1*1)+(1*2)=3
  (2*2*2)+(2*3)=14
  (3*3*3)+(3*4)=39
  Therefore (4*4*4)+(4*5)=84
  so the answer is 84
• 7 years agoHelpfull: Yes(0) No(0)