3. Dik = f(x)3x+5fog(x) = 3x² – 6x + 17Dit = fungsi g(x)​

Jawaban:

fog(x) = 3x² – 6x + 17

f(g(x)) = 3x² – 6x + 17

3(g(x)) + 5 = 3x² + 6x + 17

g(x) = 3x² + 6x + 17 – 5

3

g(x) = 3x² + 6x + 12

3

g(x) = x² + 2x + 4