How do you factor #121-33n^2+9n^4#?
This trinomial is not factorable.
This trinomial is not factorable. The only factor pairs for
Despite that the linear factors are complex, they are conjugate pairs.
So, the product of two conjugate linear factors is real.
And so, the biquadratic can be
factorized into two real quadratics..
Comparing coefficients of
Now, the factors are
As a matter of fact, I succeeded only in this edition, to get a bug-free
answer. This is my experience. in this arithmetic game...