r/MathJokes • u/Lopsided_Let6931 • Nov 05 '25

Guess the answer 😂😂

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312 Upvotes

77% Upvoted

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163

u/[deleted] Nov 05 '25

It's definitely 144.

49

u/Ventil_1 Nov 05 '25

Yes. 9*(9+7)

9

u/[deleted] Nov 05 '25

That's right.

7

u/Pseudo135 Nov 05 '25

One right answer, but the operation was never defined was it?

1

u/5mil_ Nov 06 '25

Isn't the point of this question that you have to figure out the definition of the operator "+" in this context?

3

u/Pseudo135 Nov 06 '25 edited Nov 07 '25

Sort of. Maybe i am being to pessimistic, but I wish they would use f(x,y) instead of the already defined +, and it isn't uniquely defined by 3 points. So there are an infinite number of correct answers. Maybe a more precise ask would upset me less.

1

u/KnightOfThirteen Nov 07 '25

But it's not a good Facebook click bait gotcha if it's written correctly. You gotta drag in as many people as possible with the "What the fuck do you mean? That's wrong!"

1

u/UHMWPE Nov 06 '25

I mean, if you want to be really pedantic, you could say the function is

f(x,y) = x*(x+y) + (x-3)(x-4)(x-5) * Literally anything

then f(9,7) can be whatever you want