Question

How do you differentiate `f(x)=2ln(x^2+x)-ln(x^4+2x^3+x^2)`?

Answer 1

We notice that

#f(x)=2ln(x^2+x)-ln(x^4+2x^3+x^2)=> f(x)=ln(x^2+x)^2-ln(x^2+x)^2=0#

Hence `(df)/dx=0`