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18 October, 07:46

Janet wants to solve the equation y+y^2-5/y^2-1=y^2+y+2/y+1 What should she multiply both sides of the equation by?

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  1. 18 October, 09:17
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    Best to multiply by (y+1) (y-1) since on one side of the equation you have something divided by (y+1) and on the other something over (y²-1). since (y+1) (y-1) expanded is y²-1 this would work.
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