+0  
 
0
29
2
avatar+437 

Name the next three terms in the sequence:  6,8,-32,-30,120

 

I first tried and got 122, -610 and -608. Supposedly the first number is right but not the next? I hope someone can help soon!

 
Mr.Owl  Sep 10, 2018
 #1
avatar+930 
+3

\(A_2=A_1+2\\ A_3=A_2\cdot(-4)\\ A_4=A_3+2\\ A_5=A_4\cdot(-4)\\ \)

For the next term, you take 120 and add two to get 122. 

Then, you multiply by -4 to get -488. 

Finally, you add two again to get -486. 

 

The next three terms in order are 122, -488, -486. 

 
GYanggg  Sep 10, 2018
 #2
avatar+437 
+1

Thanks so much!

 
Mr.Owl  Sep 10, 2018

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