kill(all)$

van=facebook.com/LearningCalculus$

f(x):=((x+5)/(sqrt(x)*(x+4)*(sqrt(x)-1)));

kill(f)$

f(x):=''(radcan((x+5)/(sqrt(x)*(x+4)*(sqrt(x)-1))));

'(integrate(f(x),x))=integrate(f(x),x);

logcontract(logarc(%));