>>8207749
(45241/9)+-(1176407/90)x+(308340161/22680)x^2-(5330767/720)x^3+(1262363/540)x^4-(79561/180)x^5+(53129/1080)x^6-(237/80)x^7+(421/5670)x^8

is one solution. For x=1, you get the first number in the series. For x=2, you get the second and so on. The ninth tells us that X = -(8381/9)

>>8207791
kek

>>8207749
Could be anything.

>>8207791
>8
how do you get to that?

>>8207823
Don't you fucking kek me you fucking little piece of shit. You little underage frogposter faggots and your fucking keks. You are one lonely fucker with no friends. Fuck you

[math]
f(x) = \[ \begin{cases}
89 & x = 1 \\
82 & x = 2 \\
84 & x = 3 \\
85 & x = 4 \\
80 & x = 5 \\
9 & x = 6 \\
91 & x = 7 \\
93 & x = 8 \\
0 & x = 9 \\
96 o& x = 10 \\
\end{cases}
\]
[/math]

As we can see the answer is clearly [math]f(9) = 0[/math].

>>8207958
It took 10 seconds in Mathematica.

>>8207982
what is the function?

>>8208002
I think he intended it to be piecewise

>>8207749
only 9 is square

>>8208002
that's the function, cant' you read? it's clearly 0