Find the range of mmm for which x2+mx+9=0x^2 + mx + 9 = 0x2+mx+9=0 has two distinct real roots.
m>6m > 6m>6 or m<−6m < -6m<−6
−6<m<6-6 < m < 6−6<m<6
m>3m > 3m>3
m<−3m < -3m<−3