find the missing term 2,12,30,56,_,132,182

• 2^2-2=2
  4^2-4=12
  6^2-6=30
  8^2-8=56
  10^2-10=90
  so answer is 90.
  
• 10 years agoHelpfull: Yes(2) No(0)
• 12-2=10+8*0
  30-12=10+8*1
  56-30=10+8*2
  90-56=10+8*3
  132-90=10+8*4
  182-132=10+8*5
  So, 90
• 10 years agoHelpfull: Yes(1) No(0)
• the subtracted series gives 10,18,26,34...
  subtracting it again we get 8,8,8,...
  so add 8 to 26 = 34
  again add 56 to 34 =90
• 10 years agoHelpfull: Yes(0) No(0)