For what values of k, the equation 9x²+6kx+4=0 has equal roots? | Class 10 Math Sample Paper 2020

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For what values of k, the equation 9x2+6kx+4=0 has equal roots?



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For what values of k
the equation 9x²+6kx+4=0 has equal roots?
| Class 10 Math Sample Paper 2020