# math

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is this anwer correct
9a^2b + 3c + 2a^2b + 5c =

• math -

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

• math -

11a^2 + 8c

Where did you get c^2?

• math -

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

so the answer IS 11a^2 +8c^2

• math -

No, it isn't.

Both your last equations, and "the answer" are wrong. Read again the posts of Reiny and PsyDAG.

• math -

there are choices
a) 19a^2bc
b) 11a^2b+8c
c) 11a^4b^2 +8c^2
d) 19a^2b^2c^2

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