Find+Excluded+Values+of+Rational+Expressions+-+Including+Opposites

__**Simplifying Rational Expressions: Including Opposites**__ By: Dara Cooper and Michelle Garay

Rational Expression: a fraction with polynomials in the numerator and denominator
 * 1) 1 Rule: NO ZERO IN THE DENOMINATOR

• Factor out GCFs first and then factor if it is not simplified enough. If it is a trinomial: FACTOR IT! • Opposites cancel out to equal a negative. For example: (x-5) and (5-x) cancel each other out to equal a negative

Check out this video for information on simplifying rational expressions with opposites: http://www.pascack.k12.nj.us/70420113010379593/lib/70420113010379593/Dara_Cooper_Michelle_garay.mov Check out this website for extra help: http://www.purplemath.com/modules/rtnldefs2.htm