Question 986759
Simplify and use discriminant.


Skipping many of the steps, discriminant is {{{9k^2-74k-83=0}}}
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{{{k=(74+- sqrt(74^2+36*83))/18}}}
{{{k=(74+- sqrt(8464))/18}}}
{{{k=(74+- 92)/18}}}
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{{{highlight(k=-1)}}}  or {{{highlight(k=9&2/9)}}}




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ONE solution required that discriminant be 0.
Discriminant must be positive for two real solutions.