Answer:
![x^4 + 4x^3 + 10x](https://img.qammunity.org/2020/formulas/mathematics/high-school/itwdfy74mlvb7x5o00oigw6y172z678f0j.png)
Explanation:
A polynomial written in decreasing order of the degree of its monomials ( or single term ) is called its standard form,
In polynomial,
,
Degrees are written in increasing order,
⇒ It is not written in standard form,
In polynomial,
,
Degrees are written in decreasing order,
⇒ It is written in standard form,
In polynomial,
,
There is no order of degrees,
⇒ It is not written in standard form,
In polynomial,
,
There is no order of degrees,
⇒ It is not written in standard form,