document.write( "Question 1022586: The roots of the quadratic equation z^2 + az + b = 0 are 2 - 3i and 2 + 3i. What is a+b? (i=√-1) \n" ); document.write( "
Algebra.Com's Answer #638280 by josgarithmetic(39617)\"\" \"About 
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\"%28z-%282-3i%29%29%28z-%282%2B3i%29%29=0=z%5E2%2Baz%2Bb\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28z-2%2B3i%29%28z-2-3i%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28z-2%29%5E2-%283i%29%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"z%5E2-4z%2B4%2B9\"\r
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\n" ); document.write( "\n" ); document.write( "\"z%5E2-4z%2B13\"
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