tolong di bantu ya teman teman

10). (fog) (x) = 4x-6
g(x) = x+2/2x-1
dit : f(x)?
jawab :
(fog) = f(g(x))
4x-6= f(x+2/2x-1)
(4x-6)(2x-1) = f(x+2)
8x²-4x-12x+6=f(x+2)
8x²-16x+6=f(x+2)
f(x)= 8x²-16x+6/x+2

12. e