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## Homework Statement

i have a problem i tried to solved about 3 days and i couldn't ... here it is :

(exp(x)/x^3)=2x+1

## Homework Equations

## The Attempt at a Solution

((e^x)/(x^3))=2x+1 > e^x=2x^4+x^3 >> (x=ln(2x^4+x^3) or 2x^4+x^3-e^x=0) ,, is it possible to get the zeros from the 2 solutions without graphing ??