Simplify f+g / f-g when f(x)= x-6 / x+7 and g(x)= x-7 / x+6

ANSWER



EXPLANATION

The given functions are



and



We are required to simplify,



We proceed as follows:





This gives us,



This simplifies to,



We now apply difference of two squares to get,





This further simplifies to,



Therefore the correct answer is C

Ab=dc ac=de ad=bce i hope this !