$\"\"$

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The polynomial function is $\"\"$ .

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Factor $\"\"$ .

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$\"\"$

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To find the complex zeros, equate $\"\"$ to zero.

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$\"\"$

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Apply zero product property.

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$ .

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The complex zeros of $\"\"$ are $\"\"$ .

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$\"\"$

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The complex zeros of $\"\"$ are $\"\"$ .

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By the factor theorem, the factor form of $\"\"$ .

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$\"\"$ .

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Factor form of $\"\"$ is $\"\"$ .

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$\"\"$

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The complex zeros are $\"\"$ .

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Factor form of $\"\"$ is $\"\"$ .