SOLUTION: (3)/(y-1)+(y+3)/(y)-(2)/(y^2-1) make into one fraction

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Question 920022: (3)/(y-1)+(y+3)/(y)-(2)/(y^2-1)
make into one fraction
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(3)/(y-1)+(y+3)/(y)-(2)/(y^2-1)
make into one fraction
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lcd = y(y-1)(y+1)
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Convert each fraction to having that lcd::
[3y(y+1)]/lcd + [(y+3)(y^2-1)]/lcd - [2y]/lcd
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Combine over the lcd::
[3y + (y+3)(y^2-1) - 2y]/lcd
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Simplify::
[y^3 + 3y^2 - 3]/lcd
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Cheers,
Stan H.
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