If f(x)=2x+3x−4f(x) = \frac{2x+3}{x-4}f(x)=x−42x+3, find f−1(x)f^{-1}(x)f−1(x).
2x+4x−3\frac{2x+4}{x-3}x−32x+4
4x−3x+2\frac{4x-3}{x+2}x+24x−3
4x+3x−2\frac{4x+3}{x-2}x−24x+3
3x+42−x\frac{3x+4}{2-x}2−x3x+4