express (2x^2-3x-5)/(x^2+6x+5) in the form (ax+b)/(cx+d)
(2x-5)/(x+5)
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Solve x^2+6x+5=0
A bag contains 5 red beads and 7 blue beads. Two beads are removed at random without replacement. Workout the probability that the two beads are the same colour.