Question

Rezolvati ecuatia: log3(log4(x^2-17))=1

Answer 1

DVA:$x^{2} \geq 17$
$log_{3} log_{4}( x^{2} -17)=1$
$log_{4}( x^{2} -17)=3$
$x^{2} -17=64$
$x^{2} =81$
$x=9$