Question

resolva a equação exponencial 3x-1=243

Answer 1

$3x-1=243 \\ 3x=244 \\ x= \frac{244}{3} = 81,333...$

Answer 2

3^x-1=243
Fatore 243:
243:3
81:3
27:3
9:3
3:3
1
3^5 #
3^x-1=3^5
x-1=5
x=5+1
x=6 #