SOLUTION: For all r not equal to +2 or -2, (r^2-5r+6)/(r^2-4)=

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Question 85244: For all r not equal to +2 or -2, (r^2-5r+6)/(r^2-4)=
Answer by praseenakos@yahoo.com(507) About Me  (Show Source):
You can put this solution on YOUR website!

(r^2-5r +6)/(r^2-4)
( r^2-3r-2r+6)/(r-2)(r+2) by factorising i.e(a^2-b^2)=(a-b)(a+b)
r(r-3)-2(r-3)/(r-2)(r+2)
(r-3)(r-2)/(r-2)(r+2)
(r-3)/(r+2)

therefore (r^2-5r+6)/(r^2-4)= (r-3)/(r+2)