implicit differentiation general question.

[mano91]

i have noticed that in all solutions to questions that if the numerator is negative, they multiply it into the denominator so the numerator becomes positive.
is it ok to leave the numerator negative?

[TrueTears]

Yeap ofcourse, both ways are fine. However sometimes questions might specify certain details such as "find the values of a and b" and these values are in the numerator and they give you a general format of the answer, then your answer must match that to get the values.

But if it's just a general arithmetic question, you can leave it in either way.