Answer: [tex]-3x^{5}-9x^{3}+6x^{2}-x [/tex]
Step-by-step explanation:
We have the following expression:
[tex]-3x^{5}+6x^{2}-9x^{3}-x[/tex]
If we rewrite it in descending order, from the highest exponent to the lowest exponent, we will have:
[tex]-3x^{5}-9x^{3}+6x^{2}-x [/tex]
This is a Fitht degree polinomial, since its highest power is 5.
