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4 March, 16:12

Which of the following is equal to the rational expression when x=-1 or - 7? (x+1) (x-1) / (x+7) (x+1)

a. x+7/x-1

b. x-1/x+7

c. x+1/x+7

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  1. 4 March, 18:27
    0
    I don't know if I'm right but I think it's a
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