Respuestas

2012-04-03T15:52:53+02:00

logx²-3logy=7

logx+logy=1

 

x>0 y>0

 

logx²-logy³=7

logxy=1

 

log(x²/y³)=log10

logxy=log10

 

x²/y³=10

xy=10

 

x²/y³=10

x=10/y

 

(10/y)²/y³=10

(10²/y²)/y³=10

10²/y=10

y=10²/10

y=10

y=(1/10)

y=1/10

 

x=10/(1/10)

x=10*10

x=100