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Solve-the-equation-x-2-2-x-x-4-4-x-3-15-x-125-x-27-x-




Question Number 154274 by mathdanisur last updated on 16/Sep/21
Solve the equation:  x^2 ∙2^x (x^4 ∙4^x  + 3∙15^x ) = 125^x  - 27^x
$$\mathrm{Solve}\:\mathrm{the}\:\mathrm{equation}: \\ $$$$\mathrm{x}^{\mathrm{2}} \centerdot\mathrm{2}^{\boldsymbol{\mathrm{x}}} \left(\mathrm{x}^{\mathrm{4}} \centerdot\mathrm{4}^{\boldsymbol{\mathrm{x}}} \:+\:\mathrm{3}\centerdot\mathrm{15}^{\boldsymbol{\mathrm{x}}} \right)\:=\:\mathrm{125}^{\boldsymbol{\mathrm{x}}} \:-\:\mathrm{27}^{\boldsymbol{\mathrm{x}}} \\ $$
Commented by MJS_new last updated on 16/Sep/21
x=0  x=1  x=2  (x=−∞)
$${x}=\mathrm{0} \\ $$$${x}=\mathrm{1} \\ $$$${x}=\mathrm{2} \\ $$$$\left({x}=−\infty\right) \\ $$

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