Asked by Tony
If a is a real number and a cubic equation
f(x)=x^3−12x^2+(a+20)x−2a
has a repeated root, what is the sum of all the possible values of a ?
f(x)=x^3−12x^2+(a+20)x−2a
has a repeated root, what is the sum of all the possible values of a ?
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Answered by
Anonymous
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?
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