document.write( "Question 732062: Given -5i is a root determine all other roots of f(x)=x^3+5x^2+25x+125 \n" ); document.write( "
Algebra.Com's Answer #447471 by MathLover1(20850)\"\" \"About 
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\"f%28x%29=x%5E3%2B5x%5E2%2B25x%2B125\"...factor completely\r
\n" ); document.write( "\n" ); document.write( "set \"f%28x%29=0\" \r
\n" ); document.write( "\n" ); document.write( "\"0=%28x%5E3%2B5x%5E2%29%2B%2825x%2B125%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%28x%2B5%29%2B25%28x%2B5%29=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x%5E2%2B25%29%28x%2B5%29=0\"\r
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\n" ); document.write( "\n" ); document.write( "if \"%28x%5E2%2B25%29=0\"...=>...\"x%5E2=-25\"..=>...\"x=sqrt%28-25%29\"..=>...\"x=5i\" or \"x=-5i\"\r
\n" ); document.write( "\n" ); document.write( "if \"x%2B5=0\"..=>...\"x=-5\"\r
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\n" ); document.write( "\n" ); document.write( "so, roots are:\r
\n" ); document.write( "\n" ); document.write( "\"x=-5\"...real
\n" ); document.write( "\"x=5i\".......complex
\n" ); document.write( "\"x=-5i\"......complex\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-50%2C+150%2Cx%5E3%2B5x%5E2%2B25x%2B125%29+\"\r
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