[tex] x^{2} * 7^{ \sqrt{2x-5}-2 } +25* 7^{x-1} = x^{2} * 7^{x-1} + \frac{25}{49} * 7^{ \sqrt{2x+5} } [/tex]. Created by sosssel. algebra-ru

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[tex] x^{2} * 7^{ \sqrt{2x-5}-2 } +25* 7^{x-1} = x^{2} * 7^{x-1} + \frac{25}{49} * 7^{ \sqrt{2x+5} } [/tex]

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kovalenina $x^{2} *(7 ^{ \sqrt{2x-5} -2} -7 ^{x-1} ) = 25*(7 ^{ \sqrt{2x-5}-2 } -7 ^{x-1} )
$

$\frac{x ^{2} }{25} =1,$ $2x-5 \geq 0$

$\left[\begin{array}{ccc}x=5&\\x= -5&\\x \geq 2,5&\end{array}\$

x = 5

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rabota vyhoda elektrona iz cinka ravna 4 ev mozhet li izluchenie s dlinoj volny 0

metalicheskaya plastina pod dejstviem rentgenovskogo izlucheniya zaryazhaetsya kakov z

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