tolong jawab yaa dik:f(x)= x²-4x+2 g(x)= 3x-7 tentukan a) gof b)fog c)gof(5) d)(fog)(10)

a. g o f (x)
= g(f(x))
= 3(x² - 4x + 2) - 7
= 3x² - 12x + 6 - 7
= 3x² - 12x - 1

b. f o g (x)
= f(g(x))
= f(3x - 7)
= (3x - 7)² - 4(3x - 7) + 2
= 6x² - 14x + 49 - 12x + 28 + 2
= 6x² - 26x + 79

c. g o f (5)
= 3(5)² - 12(5) - 1
= 75 - 60 - 1
= 14

d. f o g (10)
= 6(10)² - 26(10) + 79
= 600 - 260 + 79
= 419