Answer:
Explanation:
1) Collect like terms.
2) Simplify.
Therefor, the answer is 5c² + 6c + 13.
5c^2 +6c +13
so we can see than 5c^2
and 13c - 7c are the same = 6c
and 4 +9 = 13
so answer will 5c^2 +6c +13
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