MCQ - 58-8790

Correct Answer: B

Explanation:

To find the order of the expression, first define what the order of an expression represents.
In a general example,
axⁿ
a represents the coefficient of the x term and n represents the degree or order of the expression.
When there are more than one term in an expression such as,
x²+y³+xy³
the order of that expression is the highest degree on a given term.
In mathematical terms,
x²→Degree=2y³→Degree=3xy³→Degree=1+3=4
therefore the order of the expression is four.
Looking at the specific expression in question the following is seen.
2x²+xy
2x²→Degree=2xy→Degree=1+1=2
Therefore, the order of the expression is two.