Find the value of k, for which one root of the quadratic equationkx2-1 – InterviewSolution

1.	Find the value of k, for which one root of the quadratic equationkx2-14x + 12 = 0is six times the other.
Answer» suppose roots are a and 6aso a+6a=14/kso 7a=14/kso a=2/k so k=2/a6a*a=12/ka^2=2/k=2a/2=aso a(a-1)=0if a=0 k=infinite which in not possiblea=1 so k=2

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