Calculation limit limx2-2x-3 / x2-9

LIM (X & # 178; - 9) / (X & # 178; - 2x-3) x tends to 3
=LIM (x + 3) (x-3) / (x + 1) (x-3) x tends to 3
=LIM (x + 3) / (x + 1) x tends to 3
=(3+3)/(3+1)
=3/2

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