1. **State the problem:** Simplify the expression $$(2v^2 - 9v + 9) + (4v^2 - 8v + 5) - (-7v^2 + 5v + 5)$$
2. **Apply the distributive property:** Remove parentheses and change signs for the last group because of the minus sign:
$$2v^2 - 9v + 9 + 4v^2 - 8v + 5 + 7v^2 - 5v - 5$$
3. **Group like terms:**
$$(2v^2 + 4v^2 + 7v^2) + (-9v - 8v - 5v) + (9 + 5 - 5)$$
4. **Add coefficients:**
$$\cancel{2v^2} + \cancel{4v^2} + 7v^2 = 13v^2$$
$$-9v - 8v - 5v = -22v$$
$$9 + 5 - 5 = 9$$
5. **Write the simplified expression:**
$$13v^2 - 22v + 9$$
**Final answer:** $$13v^2 - 22v + 9$$
Simplify Polynomial 4Be334
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