diketahui fungsi f(x)=2x-1 dan g(x)=3x kuadrat -x+5. komposisi (g°f)(x)=

f(x) = 2x - 1
g(x) = 3x² - x + 5

gof(x) = g(f(x))
          = g(2x - 1)
          = 3(2x - 1)² - (2x - 1) + 5
          = 3(4x² - 4x + 1) - 2x + 1 + 5
          = 12x² - 12x + 3 - 2x + 6
          = 12x² - 14x + 9

(g°f)(x) = 2(3x⁻ˣ⁺⁵)-1
= 6 x ⁻ˣ+5 -1