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[tex] (\frac{4}{9} )^x*( \frac{27}{9})^x= \frac{2}{3} [/tex]
[tex] (\frac{4}{9} )^x*( \frac{27}{9})^x= \frac{2}{3} [/tex]
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(2/3)^2x*3^x=2/32^2x/3^x=2/3
2x=1⇒x=0<5
x=1
0,5≠1
нет решения