Question

Calcule o valor de x:
log(x+2)+log4=log(2x+10)
x=5
x=3
x=1
x= -5

Answer 1

log(x+2)+log4=log(2x+10)

log (x+2).4 = log (2x+10). => log morreu!

(x+2).4 = (2x+ 10)

4x+8 = 2x+10

4x -2x = 10 -8

2x = 2

x = 1 ✓