Answer:
The answer already exists in your question...
That is correct expansion
Option D:
is the right answer
Step-by-step explanation:
Given polynomials are:

We have to find the sum of polynomials
So,

Combining like terms

Hence,
Option D:
is the right answer
Keywords: Polynomials, sum
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Answer:
C
Step-by-step explanation:
the rate of change is constant in y (adding 3) and x (adding 2)