For this case we have the following polynomials:

By subtracting both polynomials we have:

What we must do is subtract terms of the same degree.
We have then:
Answer:
will be a polynomial
C because -3 is less than 2 and we’ll stay the same
20 with a number minus what will equal 9. ^_^
9514 1404 393
Answer:
B 2(−10x+2y−1)
Step-by-step explanation:
The greatest common factor is 2. Factoring that out gives the factorization shown in choice B.
2(-10x +2y -1)
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You could factor out -2. Doing that would give ...
-2(10x -2y +1) . . . . . . . doesn't match choice C