Answer:
[tex]9x^{2} -6x+1[/tex]
Step-by-step explanation:
f(g(x)) = [tex](3x-1)^{2}[/tex]
f(g(x)) = [tex](3x)^{2} + (2 * 3x * (-1)) + (-1)^{2}[/tex]
f(g(x)) = [tex]9x^{2} -6x+1[/tex]