# How do you factor #121-33n^2+9n^4#?

##### 2 Answers

This trinomial is not factorable.

#### Explanation:

This trinomial is not factorable. The only factor pairs for

#### Explanation:

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..

Let

Comparing coefficients of

Comparing others,

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...