Question 1151789
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The only difference between the polynomials Marcus and Ariel wrote out is that the {{{3x^3}}} and {{{y^3}}} terms have been swapped.


When talking about standard form, we write the letters in alphabetical order. There is nothing inherently wrong about writing the letters out of order, but its just common convention. For example, standard form would be {{{x+y}}} instead of {{{y+x}}} even though they are the same expression (since we can add two numbers in any order). 


A similar question is asked here
<a href = "https://mymathforum.com/threads/the-letters-in-a-polynomials-standard-form.54277/">https://mymathforum.com/threads/the-letters-in-a-polynomials-standard-form.54277/</a>


Since Marcus lists x first, then y, this means his polynomial is in standard form. Note how the exponents for x count down (from 3 to 2 to 0). The degree of any monomial is the sum of the exponents. The degrees of each mononial is counting down. The constant term is always last in any standard form polynomial.
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