Is this merely a matter of just multiplying both of these by -1??
November 6th 2009, 03:07 PM
Yep just multiply top and bottom by -1. You've done all the hard work! Well done.
November 6th 2009, 03:29 PM
quick question, was there a certain explanation for multiplying both num and denominator by -1... just asking for future reference.
November 6th 2009, 06:31 PM
You don't have to do that last step. Your answer is just as correct. So if you stopped where you did, you're still correct. It's sort of like if you said a+b and they said b+a, then they are both the same.