$\"\"$

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The integral is $\"\"$ .

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Here $\"\"$ contains irreducible quadratic factors.

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Therefore,

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$\"\"$

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Equate coefficients of like terms on each side.

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$\"\"$

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Solve the above system of equations.

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If $\"\"$ , then

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$\"\"$

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$\"\"$ .

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$\"\"$

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

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$\"\"$

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Substitute $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ in the equation(1).

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$\"\"$

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$\"\"$

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The integral is $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .