SOLUTION: Let {{{f(x)=x^2+12x+c}}}. For which value of c will f(x) have one distinct root?

SOLUTION: Let {{{f(x)=x^2+12x+c}}}. For which value of c will f(x) have one distinct root?

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Question 542236: Let . For which value of c will f(x) have one distinct root?
Answer by mathie123(224) (Show Source): You can put this solution on YOUR website!
We know that if the discriminant is equal to zero, then the expression will only have one distinct root.
This means that

Therefore will ensure that f(x) has one distinct root.

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