What will you do to simplify x^2/x-1 - x^2/x+1 - 1/x-1 +1/x+1 , what will be the first step? Finding LCD or is there anything else that could be done? Thanks million for any input.

in Algebra 1 Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

The first thing to do is to collect together terms with the same denominator:

x^2/(x-1)-1/(x-1) - x^2/(x+1)+1/(x+1).

Next, combine the numerators: (x^2-1)/(x-1) - (x^2-1)/(x+1).

The denominator divides into the numerator because x^2-1=(x-1)(x+1);

x+1-(x-1)=x+1-x+1=2, so the expression simplifies to just 2.

by Top Rated User (711k points)
@Rod Thank you so much, this is a great answer :) xx

Related questions

1 answer
0 answers
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
84,404 questions
89,215 answers
1,988 comments
7,492 users