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Mihaif2
a fost răspuns

Rezolvati in multimea R ecuatia : ([tex] \frac{4}{9} [/tex] ) la puterea 4x-5 = ([tex] \frac{27}{8} [/tex] ) la puterea - 18

Răspuns :

Renatemambouko
(4/9)^(4x-5) =(27/8)^(-18) [(2/3)^2]^(4x-5) =(8/27)^(18)
[(2/3)^(8x-10) =[(2/3)^3]^(18)
(2/3)^(8x-10) =[(2/3)^54
8x-10=54
8x=64
x=8




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