Ashe1
Ashe1
28-04-2015
Mathematics
contestada
what is the log 5x=log (2x+9)
Respuesta :
crisforp
crisforp
28-04-2015
5x = 2x + 9, where 5x > 0 and 2x + 9 > 0 ;
Then, 3x = 9 ;
Then, x = 3 ;
Verify : 5 × 3 = 2 × 3 + 9 ;correct !
5 × 3 > 0 ; correct !
2 × 3 + 9 > 0; correct !
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