For what values of mmm does the inequality x2+mx+9≤0x^2 + mx + 9 \leq 0x2+mx+9≤0 have exactly one solution?
m=6m = 6m=6 or m=−6m = -6m=−6
m=3m = 3m=3
m=0m = 0m=0
No value of mmm