Thread: Unable to simplify equation

I have the function f(n) = n² + (n² - (n-1)) + (n² - 2(n-1)) + (n² - 3(n-1))

I tried pulling an "n-1" out like so:
f(n) = n² + (n-1) [ (n²-1) + (n²-2) + (n²-3) ]

But when I run test cases on it against the original, it doesn't come out right.
I'm pretty positive I can't take an "n^2" out to simplify it.

Is that the simplest I can express that equation?

Hello, jonarmani!

I have the function

I tried pulling an "n-1" out like so:
. Illegal!

But when I run test cases on it against the original, it doesn't come out right.
I'm pretty positive I can't take an "n^2" out to simplify it.

Is that the simplest I can express that equation?

Why not add the four polynomials?



. . . . . . . .

Thank you!!!