Answer:
[tex]\huge\boxed{\sf f(3)=20}[/tex]
Step-by-step explanation:
Given function is:
[tex]f(x) =3x^2-4x+5[/tex]
Put x = 3
[tex]f(3) =3(3)^2-4(3)+5\\\\f(3)=3(9)-12+5\\\\f(3)=27-12+5\\\\f(3)=15+5\\\\f(3)=20\\\\\rule[225]{225}{2}[/tex]
3(3)^2- 4(3) + 5 = 20
f(x) just means function so you plug in the value of x in the equation and solve.
