Jawab yaaa bantu pakai cara

1) f(x) = x - 1 dan g(x) = x² + 2x -3
(gof) (x) = (x-1)² + 2(x-1) -3
= x² -2x + 1 + 2x -2 -3
= x² - 4

2) f(x) = (3x - 4) / (2x - 5)
y = (3x - 4) / (2x - 5)
y(2x - 5) = (3x -4)
2yx - 5y = (3x -4)
2yx - 3x = 5y - 4
x (2y -3) = 5y -4
x = (5y -4) / (2y -3)
f-¹(x) = (5x - 4) / (2x - 3)