Find the value of k for which the quadratic equation kx2_14x+8=0is 2
sam1010:
Is that x square or 2x?
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2kx-14x+8=0
substituting given root 2 in the equation
2k(2)-14(2)+8=0
4k-28+8=0
4k=20
k=5
substituting given root 2 in the equation
2k(2)-14(2)+8=0
4k-28+8=0
4k=20
k=5
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Answer: 5
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