The polynomial is not written in standard form.
Explanation:
A polynomial is in standard form when its terms are arranged in descending order of degree (from highest to lowest).
In this polynomial:
The term has a degree of 2.
The term 7x has a degree of 1.
The constant terms (5) and (-2) combine to give (3) (i.e., (5 - 2 = 3)).
The correct standard form would be: