9-x^2/2x-6сократить дробь

Question

9-x^2/2x-6
сократить дробь

Answer 1

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Answer 2

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