find the equation of k which has equal roots for 2kx2+5k+2
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D=0
B^2-4AC=0
25K^2-4(2K)(2)=0
25K^2=16K
25K=16
k=0.64
B^2-4AC=0
25K^2-4(2K)(2)=0
25K^2=16K
25K=16
k=0.64
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