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Step-by-step 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,