$\"\"$

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The function is $\"\"$ .

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The root of the function is $\"image\"$

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Conjugate of be also a root.

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Thus $\"image\"$ must also be a root of the polynomial.

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$\"image\"$ .

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$\"image\"$ is a one of the root of the function $\"image\"$ .

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$\"\"$ .

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Apply the long division method.

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Divide the first term of the dividend by the first term of the divisor $\"\"$ .

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So, the first term of the quotient is $\"\"$ . Multiply $\"\"$ by $\"\"$ and subtract.

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$\"\"$

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Divide the first term of the last row by first term of the divisor $\"\"$

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So,the second term of the quotient is $\"\"$ Multiply $\"\"$ by $\"\"$ and subtract.

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$\"\"$

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Divide the first term of the last row by first term of the divisor $\"\"$

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So,the second term of the quotient is $\"\"$ Multiply $\"\"$ by $\"\"$ and subtract.

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$\"\"$

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Quotient is $\"\"$

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Remainder is $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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The zeros of the functions are $\"\"$ .

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Solution :

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