Posted by lisa burton
on 11/10/2008, 10:36 am
166.67.64.21
For the equation x^2-2kx+7k+8=0,find all values of k for which the roots are (a) real and equal (b) real and unequal. I got this far I don't know if it is correct? a=x^2 b=-2k c= 7k+8, (-2k)^2-4(7k+8), 4-60=-56,k=-56,this is all far I got dont know what else to do?
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