Respuesta :
x=1/4 because, 1/4 will multiply with 4 to cancel out to have an exponent of 1
[tex]\bf (9^4)^{?}=9^1\implies 9^{4\cdot ?}=9^1\implies \stackrel{\textit{same base, the exponents must also be the same}}{4?=1\implies ?=\cfrac{1}{4}}[/tex]