SOLUTION: Determine the values of k so that the equation x^2+kx+36=0 will have one real root.please show me step by step.
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Question 601497: Determine the values of k so that the equation x^2+kx+36=0 will have one real root.please show me step by step.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
In order for a quadratic to have one real root (with a multiplicity of two, of course), it must be a perfect square trinomial. k is two times the square root of the constant term.
John
My calculator said it, I believe it, that settles it
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