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(4 la puterea x ) la puterea 2 = 2 la puterea 8

Răspuns :

[tex](4^x)^2=2^8\\ (4^2)^x=(2^4)^2\\ 16^x=16^2=\ \textgreater \ x=2[/tex]
2 la puterea 8 egal 4 la puterea 4. razulta 4 la x la 2 egal 4 la 4 => x la 2 egal 4 => x la 2 egal 2 la 2=> x=2