Solve the equation and express the solution in exact form lo
Solve the equation and express the solution in exact form.
log (2 + x) - log (x - 3) = log 2
Select one:
Solution
log (2 + x) - log (x - 3) = log 2
==> log [(2+x)/(x-3)] = log 2 since log a - log b = log (a/b)
Apply anti log on both sides
==> (2+x)/(x-3) = 2
==> 2+x = 2(x -3)
==> 2+x = 2x -6
==> 2x -x = 6 +2
==> x = 8
