[" 13.If "-4" is a root of the equation ...

[" 13.If "-4" is a root of the equation "x^(2)+2x+4p=0" ,find the value of "k" for "],[" which the quadratic equation "x^(2)+px(1+3k)+7(3+2k)=0" has equal "]

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The value of k, for which the quadratic equation 4x^2+4 sqrt3 x+ k=0 has equal roots is: