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x-3-7x-6-0-prove-that-x-2-3-1-

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Question Number 75913 by ajfour last updated on 21/Dec/19
x^3 −7x+6=0 prove that x=2,−3,1 .
$${x}^{\mathrm{3}} −\mathrm{7}{x}+\mathrm{6}=\mathrm{0} \\ $$$${prove}\:{that}\:{x}=\mathrm{2},−\mathrm{3},\mathrm{1}\:. \\ $$
Commented by TawaTawa last updated on 21/Dec/19
Sir, please solve it, i want to learn your approach.
$$\mathrm{Sir},\:\mathrm{please}\:\mathrm{solve}\:\mathrm{it},\:\mathrm{i}\:\mathrm{want}\:\mathrm{to}\:\mathrm{learn}\:\mathrm{your}\:\mathrm{approach}. \\ $$

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