if x=-1/2 ,is a solution of the quadratic equation 3x2+2kx+3=0 find k ?
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3x^2+2kx+3=0
3 (-1/2)^2+2 (-1/2)k+3=0
3/4-k+3=0
k=3/4+3
k=15/4
3 (-1/2)^2+2 (-1/2)k+3=0
3/4-k+3=0
k=3/4+3
k=15/4
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