Respostas

2014-07-17T17:17:18-03:00

deixar as BASES iguais

(2³)^x-2  = (2²)^x/2

achando as bases iguais
achar  o do (x)
3(x-2) = 2(x/2)
3x - 6 = 2x/2
3x - 6 = 1x
3x - 1x - 6 = 0
3x - 1x = + 6
2x = 6
x = 6/2
x =3

1 1 1