Petah what does the cubic function mean

[u/Flowsbow]

[u/Jynxer_2426]

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

[u/AndreasDasos → u/Jynxer_2426]

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.

[u/hotmatrixx → u/AndreasDasos]

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.

[u/AndreasDasos → u/hotmatrixx]

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.