Question

Consider the expressions given below.

Answer 1

Answer:

First one is B

Second is C

Third is A

Answer 2

The first one is B

Second there is no answer

Third is A

Do you want an explanation?

I posted how to do the first and third question. The second question is by combining like term. X^4 plus 2x^4 is 3x^4, x plus 4x is 5x and there is -3x^3 and -7. That makes the answer 3x^4-3x^3+5x-7. Sorry for the sloppy handwriting.

EDIT: I apologize for getting the second question wrong in the beginning.