Question

calcule as equações exponenciais 3²×-³=243

Answer 1

3^2x-3   = 243
3^2x-3  = 3^5
2x - 3 = 5
2x = 5 + 3
2x = 8
x = 8/2 = 4***

Answer 2

Fatores 243
(3^2)^x-3 = 3^5
eliminar as bases 3
2x-6=5
2x=5+6
2x=11
x=11/2