1. Find the value of k, for which one root of the quadratic equation k – InterviewSolution

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1. Find the value of k, for which one root of the quadratic equation ke-14x+8=0 issix times the other.

Answer»

Let one root is x and other be 6xSum=14/k7x=14/kkx=2

Product=8/k6x²=8/k6x²=8x/2

6x²-4x=0

2x(3x-2)=0

x=0,2/3

k=2/(2/3)=6/2=3

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