Question 1096737
{{{graph(300,300,-10,110,-300,30000,(0.2x^3-25x^2+1504x+26057)/x)}}}
{{{graph(300,300,50,90,-300,10000,(0.2x^3-25x^2+1504x+26057)/x)}}}
One may graph (0.2x^3-25x^2+1504x+26057)/x; each term divided by x
or one may graph 0.2x^2-25x+1504+(26057/x, and I get 74.3 for x and 1104 for the average cost.
In what you have written, the 26057 needs also to be divided by x.
Either way, on a graphing calculator the first function, all divided by x and the second function, where each separate term is divided by x, gives the same curve, as it should.