tolong bantuannya kawan

jawab
fungsi

2)
g(x) = 3x + 2

h(x +1) = (x + 5)/ (2x +1)
h(x +1 -1) = (x-1 +5)/ (2(x-1) +1)
h(x)= (x + 4)/ (2x - 1)

g- h (x) = (3x -2 )  + (x +4)/(2x-1)
(g-h)(x) = {(3x -2)(2x -1) + (x+4) } /(2x -1)
(g-h)(x) = (6x² - 7x + 2 + x + 4)  / (2x -1)
(g-h)(x) = (6x² - 6x + 6) / (2x -1)

3)
turuan
f(x) = (2x -1)/(x + 3)
y = u/v --> y' = (u'v - uv') / (v²)

y' = { 2(x+3) - 1(2x-1)} / (x+3)²
y'  =(2x  + 6 -2x +1) / (x + 3)²
y' = 7/(x +3)²