Answer:
B
Explanation:
Remark
I'm not sure why (f + g)x is there at all. All you are instructed to do is add the two given functions together.
Solution
(f+g)y = 5x^2 - 2y + 1 - 3y^2 - y - 2
(f+g)y = 2y^2 - 3y - 1
That's B
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