3) $$ \left(4+2 n^{3}\right)+\left(5 n^{3}+2\right) $$

Question

UpStudy AI · Accepted Answer

To simplify the expression:

$$
\left(4 + 2n^{3}\right) + \left(5n^{3} + 2\right)
$$

**Step 1: Remove the Parentheses**

Since addition is associative, you can remove the parentheses without changing the order of the terms:

$$
4 + 2n^3 + 5n^3 + 2
$$

**Step 2: Combine Like Terms**

- **Combine the $$n^3$$ terms:**
  
  $$
  2n^3 + 5n^3 = 7n^3
  $$

- **Combine the constant terms:**
  
  $$
  4 + 2 = 6
  $$

**Step 3: Write the Simplified Expression**

Putting it all together:

$$
7n^3 + 6
$$

**Final Answer:**

$$
7n^{3} + 6
$$
The simplified expression is $$7n^{3} + 6$$.

3) \( \left(4+2 n^{3}\right)+\left(5 n^{3}+2\right) \)