Question

Rezolvati in multimea numereleor reale ecuatia:
$3^{ \sqrt{2x+1} }$ - 9 = 0

Answer 1

[tex]3^{ \sqrt{2x+1} }=3^2\\ \sqrt{2x+1}=2\\ \sqrt{2x+1}^2=2^2\\ 2x+1=4\\ 2x=3\\ x= \frac{3}{2} =1,5[/tex]