Question

for what value of m, the quadratic equation x2-mx+9=0 have real roots​

Answer 1

Answer:

m=6

Step-by-step explanation:

if D ≥ b²-4ac than this equation have real roots

therefor,

D ≥ m²-4x1x9

D ≥ m²-36

36 ≥ m²

m = 6

it may help you

Answer 2

Answer:

Step-by-step explanation:

if D ≥ b²-4ac than this equation have real roots

therefor,

D ≥ m²-4x1x9

D ≥ m²-36

36 ≥ m²

m = 6