$\"\"$

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The function is $\"\"$ .

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$\"\"$

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$\"\"$

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Take out common term $\"\"$ .

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$\"\"$

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$\"\"$

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Let $\"\"$ .

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Apply the derivative on each side with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ and $\"\"$ in the derivative function.

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$\"\"$

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$\"\"$

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Integrate with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in the above function.

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$\"\"$

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$\"\"$ .

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The general solution is $\"\"$ .

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$\"\"$

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The general solution is $\"\"$ .