Math

It's ambiguous. There are at least 2 solutions, though quite possibly more.

I realized immediately after complaining that it's underdetermined that it has infinite solutions because there are no fucking limits to how complicated a general function can be.

(A,B) |-> A + AB WOW SO HARD

BUT WOW there is nothing suggesting any certain solution.

then it should be 8 + 11(8) = 96

at first I assumed a +1 to the multiple for each one. considering it again, it's more likely that you're supposed to plug in the first number. in which case, yes it's 96.

but then if you add the answer to the first number of the next equation, that also works and gives you 40.

it's a function and there are many solutions.

f(x, y) = (x*y)+x

If my thinking is correct then it is 40.
1+4=5
2+5=7 but it it says =12 the difference is 5 (the sum of the previous line)
3+6=9 but it says =21, the difference of which is also the answer of the previous line.
Following this logic the answer to the final line would be 19+21=40. But it seems vague enough that other patterns are sure to exist.

>2 + 5 = 12
Glorious IQ puzzles

40
>1+4 = 5
>5 + 2 + 5 = 12
>12 + 3 + 6 = 21
>21 + 8 + 11 = 40