$\"\"$

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The rational expression is $\"\"$ .

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This rational expression is proper.

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Because the factor $\"\"$ has multiplicity $\"\"$ , include partial fractions with denominators of $\"\"$ and $\"\"$ .

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Rewrite the expression into partial fraction decomposition.

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$\"\"$

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$\"\"$

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$\"\"$

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Equate $\"\"$ coefficients.

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$\"\"$ .

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Equate constants.

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$\"\"$

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$ .

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$\"\"$

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$\"\"$ .