Find the 8th term 0,0,6,6,20,20,42,_,_

• the next number will be 42,72,72..
  explanation:
  it is in the series of 0,1,2,3,4,5,6,7,8,9
  0*1=0
  1*0=0
  2*3=6
  3*2=6
  4*5=20
  5*4=20
  6*7=42
  7*6=42
  8*9=72
  9*8=72...thats it
• 10 years agoHelpfull: Yes(60) No(3)
• ans 42,72
  Another way,
  42 is repeat number
  For 72
  like this
  6-0=6,
  20-6=14,
  42-20=22,
  72-42=30,i.e.increment of 8 each in differences.
• 10 years agoHelpfull: Yes(16) No(0)
• 0^2+0=0
  1^2-1=0
  2^2+2=6
  3^2-3=6
  4^2+4=20
  5^2-5=20
  6^2+6=42
  ***********
  there for
  ans is
  7^2-7=42
  8^2+8=72
• 10 years agoHelpfull: Yes(7) No(0)
• 0*1=0
  1*0=0
  2*3=6
  3*2=6
  4*5=20
  5*4=20
  6*7=42
  7*6=42
  8*7=48
  so no
  so ans may be=42.if yes then ok but if no then plz solve the que
• 10 years agoHelpfull: Yes(2) No(1)
• sorry for the mistake
  but series is right
  means,0*1=0
  1*0=0
  2*3=6
  3*2=6
  4*5=20
  5*4=20
  6*7=42
  7*6=42
  8*9=72
  9*8=72
  ans is 42 and 72
• 10 years agoHelpfull: Yes(1) No(0)
• 0 0 6 6 20 20 42
  0 6 14 22
  8 8 8
  so answer is 42
  42+30=72
  
• 10 years agoHelpfull: Yes(1) No(0)
• Every second term from the last increase can be described by function -->
  f(x) = 4x^2 + 2x
  so,
  f([0,1,2,3,4] = [0,6,20,42,72]
  
  so your sequence would be 0,0,6,6,20,20,42,42,72,72
• 10 years agoHelpfull: Yes(0) No(2)
• 2^2+2=6
  4^2+4=20,6^2+6=42 ..and so on..
  lastly 8^2+8=72
  SO ANS WLL BE 42,72..
  
  
• 10 years agoHelpfull: Yes(0) No(1)
• 0 0 6 6 20 20 42 42 ?=(42+30)i.e.72
  differ: 6 14 22 ?= (22+8)i.e. 30
  differ: 8 8 8
  
  Hence 42,72
• 10 years agoHelpfull: Yes(0) No(1)
• 2^2+2=6
  4^4+4=20
  6^6+6=42
  8^8+8=72
• 10 years agoHelpfull: Yes(0) No(0)