9-x^2 / x^2+5x+6

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9-x^2/x^2+5x+69-x^2/x^2+5x+69-x^2/x^2+5x+6(9-x^2)/(x^2+5x+6)=[(3-x)(3+x)]/[(x+2)(x+3)]=(3-x)/(x+2)

9-x^2 / x^2+5x+6
9-x^2 / x^2+5x+6

9-x^2 / x^2+5x+6
(9-x^2 )/ (x^2+5x+6)
=[(3-x)(3+x)]/[(x+2)(x+3)]
=(3-x)/(x+2)

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