d> 0
d = b^2 -4ac
b = -2m
d = 4m^2 - 4*4*9 > 0
m^2 >36
m > 6 или m < -6
m ∈ (-∞;-6)U(6; +∞)
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d> 0
d = b^2 -4ac
b = -2m
d = 4m^2 - 4*4*9 > 0
m^2 >36
m > 6 или m < -6
m ∈ (-∞;-6)U(6; +∞)