Question

3^x*3^-5=9^-5,then x=?​

Answer 1

3^x × (1/3⁵) = 1/9⁵

» 3^x = 1/3⁵

» x = -5

Answer 2

Question :-

• $If\:{3}^{x} \times {3}^{ - 5} = {9}^{ - 5}\:, \: then \: find \: x$

Solution :-

${3}^{x} \times {3}^{ - 5} = {9}^{ - 5}$

$\implies {3} \: ^{(x - 5)} = {3}^{-10}$

$\implies x - 5 = - 10$

$\implies x = - 5$

Answer :-

$The\:value\:of\:x\:is\:-5\:.$