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do 144 times neg 6 and that times neg 6 and that again times neg 6 to get all 6 terms

then add them

I did and the answer I got isn't the same as the options

you mean the sum of geometric series not sequence?

No it says sequence

first you need to find all the 6 terms then sum up

you have three terms
so you are missing three more to make 6 terms

what is the fourth term?

hmm really then you must of made a mistake

how did you get the fourth term for example

\[-144 \times -6 = 864\]

yes!

you should get the right answer
i don't where you missed

let's try doing the fomula
\[S_n=\frac{a(1-r^n)}{(1-r)}\]

a=first term
n=6
r=-6

@Tarynrachelle where you going?

I'm still here I'm doing the problem

well low and behold i get one of the answer choices

you should get the right answer once you do the calculations

The third answer?

Idk what I'm doing wrong then.

well to me they all give the same answer, something must be wrong in yur work

anyway you got the formula, you got the other way
just see where you had missed things

did you do it yet?

use the formula

yeah

That's supposed to be a -4

yes -4 not 4 just about to say that

Is it still wrong even with the -4? Or is it correct with the -4?

it is correct with -4

Okay. Hold on I think I see where I messed up

Nope still not getting one of the answer choices..

I plug it into my calculator and get 186614. That's the same answer I get when I add them all up

Could you explain the steps for me so I know what I'm doing wrong?

hold a sec

ok back

how did you put it in your calc?

\[-4(1-(6)^6)\div(1-(6))\]

no bottom
is (1-(-6))=1+6

where are the negatives of 6?

It's the second choice

yes!

i think you put the wrong format into your calc

Probably. But thank you

No problem