diketahui fungsi f(x)=2x+1 , g(x)=x²+2 dan h(x)=x+1 . tentukan [ho(gof)(2)

gof = g(f(x)
gof =
[tex] {(2x + 1)}^{2} + 2[/tex]
gof = (2x+1)(2x+1)+2
gof = 4x^2 +2x+2x+1 +2
gof = 4x^2+4x+3

hogof = (4x^2+4x+3)+1
= 4x^2+4x+4
hogof (2) = 4(2)^2 +4(2)+4
hogof = 8+8+4
hogof = 16+4= 20