Resposta :
2.2^x . 3^x = 5
3^2
2.2^x . 3^x = 5 mmc= 9
9
18.2^x . 3^x = 45
2^x . 3^x = 45
18
( 2.3)^x = 45
18
6^x = 5
2
log 6^x = log 5/2
x log6 = log 5 - log2
xlog6 = log10/2 - log2
xlog6 = log10 - log2 - log2
xlog6 = 1 - log2
x = 1 - log2
log6
3^2
2.2^x . 3^x = 5 mmc= 9
9
18.2^x . 3^x = 45
2^x . 3^x = 45
18
( 2.3)^x = 45
18
6^x = 5
2
log 6^x = log 5/2
x log6 = log 5 - log2
xlog6 = log10/2 - log2
xlog6 = log10 - log2 - log2
xlog6 = 1 - log2
x = 1 - log2
log6