In a quadratic equation mx^2 +6x+1=0 then the value of m when roots are equal
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value of m is -9
ANSWER
mx^2+6x+1=0(because given roots are equal)
use discriminant formula
in given equation
a=m...
b=6
c=1
b^2-4ac=0
36-4×m×1=0
-4m=36
m=-9
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