document.write( "Question 1178287: Use the given zero to find all other zeros.
\n" ); document.write( "Zero:2i
\n" ); document.write( "Equation: F(x)=2x^3+3x^2+8x+12
\n" ); document.write( "Thanks in advance!
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Algebra.Com's Answer #807483 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " Use the given zero to find all other zeros.\r
\n" ); document.write( "\n" ); document.write( "Zero: \"x%5B1%5D=2i\"=>so, you also have \"x%5B2%5D=-2i\"\r
\n" ); document.write( "\n" ); document.write( "using root product rule we have
\n" ); document.write( "\"%28x-x%5B1%5D%29%28x-x%5B2%5D%29=%28x-2i%29%28x-%28-2i%29%29\"
\n" ); document.write( "\"%28x-x%5B1%5D%29%28x-x%5B2%5D%29=%28x-2i%29%28x%2B2i%29\"
\n" ); document.write( "\"%28x-x%5B1%5D%29%28x-x%5B2%5D%29=x%5E2-%282i%29%5E2\"
\n" ); document.write( "\"%28x-x%5B1%5D%29%28x-x%5B2%5D%29=x%5E2-4%28-1%29\"
\n" ); document.write( "\"%28x-x%5B1%5D%29%28x-x%5B2%5D%29=x%5E2%2B4\"\r
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\n" ); document.write( "\n" ); document.write( "equal given quation to zero and factor it: note one factor should be \"x%5E2%2B4\"\r
\n" ); document.write( "\n" ); document.write( "\"0=2x%5E3%2B3x%5E2%2B8x%2B12\"
\n" ); document.write( "\"0=%282x%5E3%2B8x%29%2B%283x%5E2%2B12%29\"
\n" ); document.write( "\"0=2x%28x%5E2%2B4%29%2B3%28x%5E2%2B4%29\"
\n" ); document.write( "\"0+=+%282x+%2B+3%29+%28x%5E2+%2B+4%29\"\r
\n" ); document.write( "\n" ); document.write( "=>third root is:\r
\n" ); document.write( "\n" ); document.write( "\"0+%282x+%2B+3%29=0\"=>\"2x+=-3\"=>\"x+=-3%2F2\"\r
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