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For what value of k the equation 9x²+6kx+4=0 has equal roots? |
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Answer» K=2 K=2 B^2-4ac=0(6k)^2-4(9)(4)=036k^2-144=036k^2=144K^2=144/36K^2=4K=+/_2 K=2 , for the value k = 2 it has equal root. |
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