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If-the-equation-x-4-4x-3-ax-2-bx-1-0-has-four-positive-roots-then-a-b-are-




Question Number 5937 by Master Tria last updated on 05/Jun/16
If the equation x^4 −4x^3 +ax^2 +bx+1=0   has four positive roots, then a, b are
$$\mathrm{If}\:\mathrm{the}\:\mathrm{equation}\:{x}^{\mathrm{4}} −\mathrm{4}{x}^{\mathrm{3}} +{ax}^{\mathrm{2}} +{bx}+\mathrm{1}=\mathrm{0} \\ $$$$\:\mathrm{has}\:\mathrm{four}\:\mathrm{positive}\:\mathrm{roots},\:\mathrm{then}\:{a},\:{b}\:\mathrm{are} \\ $$

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