Question

daca 3 la puterea 3x · 9 la puterea 2x · 27 la puterea x =81 la puterea 5 .....aflati-l pe x

Answer 1

$...=3^{3x}\cdot(3^2)^{2x}\cdot(3^3)^{x}=(3^4)^5\\ \Rightarrow\;\;3^{3x+4x+3x}=3^{20}\;\;adica:\;10x=20\;deci\;x=2\;!$