\(\Delta\) = 4m2 - 4.(m2).(-3) = 4m2 + 12m2 = 16m2 \(\ge\) 0 \(\forall\)m
\(\Rightarrow\) phương trình có 2 nghiện \(\sqrt{\Delta}\) = \(\sqrt{16m^2}\) = \(\sqrt{\left(4m\right)^2}\) = 4m
x1 = \(\dfrac{2m+4m}{2m^2}\) = \(\dfrac{6m}{2m^2}\) = \(\dfrac{3}{m}\)
x2 = \(\dfrac{2m-4m}{2m^2}\) = \(\dfrac{-2m}{2m^2}\) = \(\dfrac{-1}{m}\)