$$(2m+1)\div4m^{3}; +18m^{2}+10m+3; =2$$
$m=\frac{-\sqrt{7}-5}{18}\approx -0.424763962\text{, }n=\frac{-49\sqrt{7}-173}{104976}\approx -0.002882962$
$m=\frac{\sqrt{7}-5}{18}\approx -0.130791594\text{, }n=\frac{49\sqrt{7}-173}{104976}\approx -0.00041303$
