Question

9 ki power x × 3 ki power 2 × ( 3 ki power -x/2 ) ki power -2 =1/27

Answer 1

${9}^{x} \times {3}^{2} \times {( {3}^{ \frac{ - x}{2} } )}^{ - 2} \\ {3}^{2x} \times {3}^{2} \times {3}^{ - x} = {3}^{ - 3} \\ 2x + 2 - x = - 3 \\ x = - 5$