Answer:.
A total of 5 expressions can be simplified to 4n + 8.
Step-by-step explanation:
1. 2n + 2(n + 4)
= 2n + 2n + 2.4
= 4n + 8
2. [tex]$ \textbf{4(n + 1)} + \frac{ \textbf{4n}}{\textbf{n}} $[/tex]
= 4n + 4 + 4
= 4n + 8
3. 2³ + n³ + n
Since. 2³ = 8 we have:
8 + n³ + n
≠ 4n + 8
4. 5(n - 1) - (n - 13)
= 5n - 5 - n + 13
= 4n + 8
5. 4n + 8
= 4n + 8
6. [tex]$ \frac{\textbf{10(4 + 2n)}}{\textbf{5}} $[/tex]
= 10.2(2 + n)/5
= 2.2(2 + n)
= 4(2 + n)
= 8 + 4n
= 4n + 8
7. (2n + 1)² - 4n²
= 4n² + 2.2n . 1 + 1² - 4n²
= 4n² + 4n + 1 - 4n²
= 4n + 1
Hence, the answer.
