21. Which of the following is true in adding/subtracting polynomials?
A. Add/subtract the numerical coefficient and add the exponent
B. Add/subtract the numerical coefficient and add the literal coefficients
C. Add/subtract the numerical coefficient and copy the same literal coefficients
D. Add/subtract the numerical coefficient and copy the same numerical
Answers & Comments
Answer:
1. C.
Step-by-step explanation:
I think c. I'm not sure.
but I hope it's help.
ZYRIEL.