Question

3. Solve for x :
(i) log (x + 2) + log (x - 2) = log 5​

Answer 1

Answer:

x =3

Step-by-step explanation:

Log [ (x+2) (x-2)]= log5

(x+2) (x-2)=5

x²-4=5

x²-9=0

x²=9

x=3 or x=-3

the negative number are not in the domain of log function

so ans is x=3