document.write( "Question 1072715: how do I find all of the zeros of the polynomial f(x)=x^2-4x+13 then completely factor the complex numbers \n" ); document.write( "
Algebra.Com's Answer #687553 by ikleyn(52786)\"\" \"About 
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\n" ); document.write( "Apply the quadratic formula.\r
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\n" ); document.write( "\n" ); document.write( "Bunch of lessons on solving quadratic equations:\r
\n" ); document.write( "\n" ); document.write( "    - Introduction into Quadratic Equations\r
\n" ); document.write( "\n" ); document.write( "    - PROOF of quadratic formula by completing the square\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook under the topic \"Quadratic equations\". \r
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