15,7 -1,-9
so than you look on these numbers what see how many is the difference between these numbers ?
mathclass:
8,9
jhonyy9:
15-7 = ?
7-(-1) = ?
-1 -(-9) = ?\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
15,7, -1,-9
so than you look on these numbers what see how many is the difference between these numbers ?
\(\color{#0cbb34}{\text{End of Quote}}\)
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jhonyy9:
i ve forget a virgule between 7 and -1
mathclass:
5
jhonyy9:
no
15-7 = ?
mathclass:
8
jhonyy9:
yes 8
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mathclass:
so that is what i put for the answer
jhonyy9:
no
you need form edit a formula of this sequence
mathclass:
so how do i do that
jhonyy9:
15 let be a_1
7 let be a_2
so how you get from a_1 the a_2 using the common difference of 8 ?
jhonyy9:
from 15 how you get 7 ?
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mathclass:
minus 8
jhonyy9:
yes
15 -8 = 7
a_1 -8 = a_2
or a_2 = a_1 -8
so from this result that you get the next term always subtracting the 8 from previous term