document.write( "Question 1201672: Use the given zero to find the remaining zeros of the polynomial function \r
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Algebra.Com's Answer #836171 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "For this given polynomial, it is easy to find its zeros even without the given info about the root x= -i.\r\n" );
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document.write( "Apply grouping and factor\r\n" );
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document.write( "    x^3 + 9x^2 + x + 9 = (x^3 + 9x^2) + (x + 9) = x^2*(x+9) + (x+9) = (x+9)*(x^2+1).\r\n" );
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document.write( "Other zeroes are -9 and i.    ANSWER\r\n" );
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