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7-x-2-10-x-7-x-1-3-15x-6-0-x-




Question Number 210871 by hardmath last updated on 20/Aug/24
7(x−2)((√(10 + x)) − ((7−x))^(1/3) )−15x + 6 = 0  x = ?
$$\mathrm{7}\left(\mathrm{x}−\mathrm{2}\right)\left(\sqrt{\mathrm{10}\:+\:\mathrm{x}}\:−\:\sqrt[{\mathrm{3}}]{\mathrm{7}−\mathrm{x}}\right)−\mathrm{15x}\:+\:\mathrm{6}\:=\:\mathrm{0} \\ $$$$\boldsymbol{\mathrm{x}}\:=\:? \\ $$
Commented by Ghisom last updated on 20/Aug/24
obviously x=−1
$$\mathrm{obviously}\:{x}=−\mathrm{1} \\ $$

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