i need help with this question parts 2 - 5

Given:
[tex]n(x)=-8|x|+4x-1[/tex]To Determine:
[tex]-n(x)[/tex]Solution
[tex]\begin{gathered} n(x)=-8|x|+4x-1 \\ -n(x)=-(-8|x|+4x-1) \end{gathered}[/tex][tex]-n(x)=8|x|-4x+1[/tex]Hence:
- n(x) = 8|x| - 4x + 1