By definition, the standard form of a polynomial is given by:
![ax ^ n + ... + bx ^ 3 + cx ^ 2 + dx + e](https://img.qammunity.org/2020/formulas/mathematics/middle-school/v4t9gsb89grjdrsjo6w01kkxltzok29bkr.png)
We then have the following polynomial:
![2x ^ 2-4x ^ 3 + (6)/(3)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/u5oc5wua8jkflrnrvb4py5llpn38tc0x5s.png)
Rewriting in its standard form we have:
![-4x ^ 3 + 2x ^ 2 + 2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fy62ma17ppqktse0cxbprih666a3v0f0xm.png)
We realize that the polynomial has three terms, therefore, it is a trinomial.
The largest exponent of the polynomial is three and therefore we have a trinomial of degree three.
Answer:
![-4x ^ 3 + 2x ^ 2 + 2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fy62ma17ppqktse0cxbprih666a3v0f0xm.png)
Three degree trinomial.