Question

Use properties of logs to simplify the expression

Answer 1

\[\log_{9}(x-\sqrt{x ^{2}-45})+\log_{9}( x+\sqrt{x ^{2}-45})\]

Answer 2

The bases are the same!
So now just multiply them log9 [x−sqrt.(x^2-45)]*[x−sqrt.(x^2-45)]

Answer 3

Understood? :)