Question

2. If f(x)= f(3x-1) for f(x)= x2 + 4x +11 find x.​

Answer 1

3x-1= 0

3x= 1

x= 1/3

putting x= 1/3 on equation

( 1/3 )^2 + 4( 1/3) + 11/1

1/9 + 4/3 +11/1

8/3 .