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Two roots of a biquadratic x^4-18x^3+ kx...

Two roots of a biquadratic `x^4-18x^3+ kx^2+ 200x-1984=0` have their product equal to `(-32).` Find the value of k.

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The correct Answer is:
`k=86`
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MOTION-QUADRATIC EQUATION-EXERCISE -3 (SUBJECTIVE)
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