int( -x*dx / (x+1 - sqrt(x+1) ). The book shows two answers:
a) -x -1 -2*sqrt(x+1) + C
b) -x -2*sqrt(x+1) + C
By using substitution method and pattern recognition I managed to find answer (b). But I'm curious about the (a) answer.
Thanks for any help,
The Integrator also gives that answer