Question

please solve my doubt of exponent chapter

Answer 1

$6561 = {3}^{8}$
then
${ ({ \frac{1}{3} }^{x} )}^{2} = { \frac{1}{3} }^{2x}$
again
${ \frac{1}{3} }^{2x} = { \frac{1}{3} }^{8}$
then
2x=8
or x=4..........(ans)

Answer 2

This is your answer i hope it will work