is this anwer correct

9a^2b + 3c + 2a^2b + 5c =

ANSWER : 11a^2 + 8c^2

5 answers

your answer is not correct

9a^2b + 3c + 2a^2b + 5c
= 11a^2b + 8c
11a^2 + 8c

Where did you get c^2?
9a^2b + 2a^2b= 11a^2
3c+5c = 8c^2

so the answer IS 11a^2 +8c^2
No, it isn't.

Both your last equations, and "the answer" are wrong. Read again the posts of Reiny and PsyDAG.
there are choices
a) 19a^2bc
b) 11a^2b+8c
c) 11a^4b^2 +8c^2
d) 19a^2b^2c^2