if its -(1-t^2/1+t^2)^2 - (2t/t^2+1)^2 Do i square the numbers in the brackets first and then times by -1 cause it has negative sign in front. If so after timesing it by -1 would it become: +answer + answer / thanks..

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Originally Posted by icesta1 if its -(1-t^2/1+t^2)^2 - (2t/t^2+1)^2 Do i square the numbers in the brackets first and then times by -1 cause it has negative sign in front. If so after timesing it by -1 would it become: +answer + answer / thanks.. No. -ve sign is outside the bracket. So it should be -(answer + answer)