Find the value of k for which the quadratic equipment 9 xsq minus 3kx plus k =0 has equal roots
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9x²-3kx+k =0
Discriminate = equal root it means =0
D=√{(-3k)²-4*9k} = 0
0=√{9k² -36k
9k²=36k
k²=4k
k=4
Discriminate = equal root it means =0
D=√{(-3k)²-4*9k} = 0
0=√{9k² -36k
9k²=36k
k²=4k
k=4
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