F (2x-1) = x square-3x + 1 to solve? I'm in a hurry. I will. Speed

F (2x-1) = x square-3x + 1 to solve? I'm in a hurry. I will. Speed

f(2x-1) =1/4(2x-1)^2-(2x-1)+1/4 f(x)=1/4x^2-x+1/4