F (x)= 3x-1 g (x)= 2xpangkat2+3 gof (x) dan gof (2)

f(x) = 3x - 1
g(x) = 2x² + 3

(g o f)(x)
= 2(3x - 1)² + 3
= 2(9x² - 6x + 1) + 3
= 18x² - 12x + 5

(g o f)(2)
= 18 . 2² - 12 . 2 + 5
= 72 - 24 + 5
= 53