Question

if X equal to 3 is 1 roots of the quadratic equation X square + 2 k r - 6 equal to zero then find the value of k

Answer 1

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Answer 2

  x=3(given)
   
       p(x)=x^2 +2kx -6
       p(3)=(3)^2 + 2k(3) - 6 =0
                 9 + 6k = 6
                       6k=-3
                         k=-1/2