kakak2 yg ganteng and cantik tolong dong bntuin isiin ini. by the way thanks so much

2.
(f o g) (2)
(f(g(x)) (2)
[tex] {x + 1}^{2} [/tex]
(x+1)(2) = "2x+2"

3.
f(x) = 3x+6
[tex] {f(x)}^{ - 1} = 3x + 6[/tex]