Question

Ill give you BRAINLIST !!!

Answer 1

Answer:

3k^2 -k+5

reason:

when adding two equations together, you combine like terms.
First, add -2 to 7 to get 5
Then, add k, or 1k, to -2k, which gives you -1k, or just -k
3k^2 stays the same because there are no like terms in the other equation to combine it with