Question

Imi poate explica cineva cum s-a ajuns la acea rezolvare? :)

Answer 1

$2^{2x-1} + 2^{2x-3} - 2* 2^{2x-5}$$=9<=> \frac{2 ^{2x} }{2 ^{1} } + \frac{2 ^{2x} }{2 x^{3} } - 2* \frac{2 ^{2x} }{2 x^{5} }=9 =><u></u>[tex] \frac{9*2 ^{2x} }{16}=9 =>2 ^{2x}=16$
$2^{2x}= 2^{4} =>2x=4 =>x= \frac{ 4}{2}$