Mathematics, 26.03.2020 17:36 ctyrector

Perform the following operations and prove closure.
(x/x+3) + (x+2/x+5)
(x+4/x^2+5x+6) * (x+3/x^2-16)
(2/x^2-9) - (3x/x^2-5x+6)
(x+4/x2−5x+6) / (x2−16/x+3)
Please write your answer in the form of (answer) if x does not equal to

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Perform the following operations and prove closure.
(x/x+3) + (x+2/x+5)
(x+4/x^2+5x+6)...