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The equation mx2 + 12x + 9m = 0 has different roots for different values of m. For what values of m...
4 months ago
Q:
The equation mx2 + 12x + 9m = 0 has different roots for different values of m. For what values of m will the equation have one repeated root?
Accepted Solution
A:
b^2 - 4ac = 0
12^2 - 4m(9m) = 0
144 = 36m^2
m^2 = 4
m = ± 2
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-TyyBenjii