Question

me ajudem por favor.

729^2x =81

Answer 1

Fatorando o 729=3^6 e fatorando o 81=3⁴

(3^6)2x= 3⁴

3^12x= 3⁴

cancelar a base 3
12x=4
x=4/12
x=1/3

Answer 2

729^2x = 81
(3^6)^2x = 3^4
3^12x= 3^4

12x=4
x=4/12 (:4))(:4)
x =1/3