What is the value of k for which the equation x^2 -2kx+7k-12 has equal real roots?
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Answer:k=3,4
Step-by-step explanation:
B^2=4ac
4k^2=4(1)(7k-12)
K^2=7k-12
K^2-7k+12=0
K^2-4k-3k+12=0
K(k-4)-3(k-4)=0
(K-4)(k-3)=0
K=3,4
Hope it helps...
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