butuh cepat gan,soalnyq lagi ulangqn,,bantuin yaa

Nomor 1]

(f o g) (x) = f(3x + 2)

(f o g) (x) = -2(3x + 2) - 5

(f o g) (x) = -6x - 4 - 5

(f o g) (x) = -6x - 9


Misal :

-6x - 9 = y

-6x = y + 9

x = (y + 9)/-6


Maka, invers nya :

(f o g) -¹(x) = (x + 9)/-6



Nomor 2]

f(x + 3) = 2(x + 3)² - 4(x + 3)

f(x + 3) = 2x² + 12x + 18 - 4x - 12

f(x + 3) = 2x² + 8x + 6


Nomor 4]


f(x + 1) = (x + 1)² - 5(x + 1) + 1

f(x + 1) = x² + 2x + 1 - 5x - 5 + 1

f(x + 1) = x² - 3x - 3