Quadratic Equation

Asked by chahat | 11th Mar, 2009, 12:16: AM

Expert Answer:

when the roots of a quadratic are equal, then the discriminant is equal to zero.

in this case,

 a=k, b= -10, c=5

So, D=(10*10)-(20k)=0

So,

100-20k=0

k=5

 

Answered by  | 12th Mar, 2009, 09:11: AM

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