Question

Ln(x/x-7)+Ln(x+7/x)-Ln(x^2-49)

Answer 1

that's a nice equation. What do we do with it?

Answer 2

lnx-ln(x-7)+ln(x+7)-lnx-(ln(x-7)+ln(x+7)

Answer 3

-ln(x-7)+ln(x+7)-ln(x-7)-ln(x+7)=-2ln(x-7)

Answer 4

=ln(1/(x-7)^2)