For which values of mmm does the inequality x2+2mx+4m−3>0x^2 + 2mx + 4m - 3 > 0x2+2mx+4m−3>0 hold for all real xxx?
m \in (-3, 1)
m \in (1, 3)
m \in (-1, 3)
m \in (-3, -1)