Jawapan

  • Pengguna Brainly
2016-02-16T10:26:49+08:00
F (x) = x + 2 , g (x) = 3 + 2x

fg(x) = f { g(x) }
         = f ( 3 + 2x )
         = ( 3 + 2x ) + 2
         = 5 + 2x
         = 2x + 5

gf(x) = g { f(x) }
         = g ( x + 2 )
         = 3 + 2 ( x + 2 )
         = 3 + 2x + 4
         = 2x + 7
1 5 1