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Question
Subtract `1/(x^2 + 2)` from `(2x^3 + x^2 + 3)/(x^2 + 2)^2`
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Solution
`(2x^3 + x^2 + 3)/(x^2 + 2)^2 - 1/(x^2 + 2) = (2x^3 + x^2 + 3 - (x^2 + 2))/(x^2 + 2)^2`
= `(2x^3 + x^2 + 3 - x^2 - 2)/(x^2 + 2)^2`
= `(2x^3 + 1)/(x^2 + 2)^2`
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