r/PeterExplainsTheJoke • u/Flowsbow • 5h ago
Meme needing explanation Petah what does the cubic function mean
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u/Jynxer_2426 5h ago
The equation in the image can be rewritten using the algebraic identity for a perfect cube: (a - b)³ = a³ - 3a²b + 3ab² - b³. Solving for x gives a single real root: x = 5. Substituting this back into the sentence means they are unplugging the "P(5)", or PS5.
Math wizz out
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u/smtp_pro 5h ago
Where does the P come from?
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u/TheRealPopatsot 5h ago
The balls
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u/Glittering-Two-1784 5h ago
The fact this isn’t the top reply means we’re old
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u/AndreasDasos 5h ago
The P is a stretch when it isn’t specified for this particular polynomial function, and where’s the S…?
For a moment I thought that the presence of x and a cube (ie, box) might relate it to X-Box but there’s isn’t an X-Box 5.
Think it might just be that it’s ‘5’ and that’s enough to infer PS5.
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u/hotmatrixx 4h ago
P is math denotion for almost any polynomial isn't it? a perfct square is jsut cute.
I mean Px=5 Px5 isn't "terrible". I mean; it isnt good, either.
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u/AndreasDasos 4h ago
P is common for polynomials but would never infer that a polynomial function is automatically to be denoted ‘P’ unless it’s explicitly named.
Px=5 doesn’t work as a statement at all here, nor P(x) = 5. It’s that P(5) = 0, and x = 5. Even then, it would be an extreme stretch for that ‘S’.
Yeah I think that he’s just calling it his ‘5’ and the PS is meant to be inferred rather than corresponding to anything else here.
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u/mindcraftfanatic 3h ago
This sounds like the joke someone who thinks they are a pro gamer would make, when they are actually some super obnoxious guy no one likes.
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u/FroggyAssassin 4h ago edited 4h ago
x³ - 15x² + 75× - 125 = 0
(x³-125) + (-15x² + 75x) = 0
(x - 5)(x² + 5x + 25) + (-15x + 75x) = 0
(x - 5)(x² + 5x + 25) - 15x(x - 5) = 0
(x - 5) [(x² + 5x + 25) - 15x] = 0
(x - 5)(x² - 10x + 25) = 0
(x - 5)(x - 5)(x - 5) = 0
(x - 5)³ = 0
∛(x - 5) = ∛0
x - 5 = 0
x = 5
They took the (PS)5.
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u/kangtuji 4h ago
how x became ps ?
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u/Karlaha2879 2h ago
Stands for "Perfect square" As in "Perfect Square of 5" (x-5)³=0
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u/MeringueBeautiful760 5h ago
X = 5. So maybe PS5?? I don't know. It's a shitty joke.
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u/Earnestappostate 5h ago
I went to a small zoo once, all they had was one dog.
It was a shih tzu.
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u/Inevitable-Pride4676 5h ago
I think if you do the equation the result is 5 which means PS5. they're unplugging and stealing the PS5 which is his most prized possession
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u/Flowsbow 5h ago
something related to plugging something into a function? I don’t know what unplugging would entail in that so maybe simply just random = funny
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u/TreacleQueasy8478 5h ago
Do the algebra, then you'll know it
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u/Flowsbow 5h ago
Petah I can’t do algebra
(this is literally just a function I graphed it in desmos already its just 3 asymptotes what do you mean do the algebra 😭)
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u/qualityvote2 5h ago edited 34m ago
Remember when r/PeterExplainsTheJoke wasn’t a meme? Pepperidge Farm remembers…
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