document.write( "Question 518014: Please help me with this problem:\r
\n" ); document.write( "\n" ); document.write( "(4i)/(3+i)\r
\n" ); document.write( "\n" ); document.write( "So far, I've got:\r
\n" ); document.write( "\n" ); document.write( "[(4i)/(3+i)] * (3-i) = (12i-4i^2)/(9-i^2)\r
\n" ); document.write( "\n" ); document.write( "I know that having i^2 = -1 but I was wondering if since it's already -4i^2 does that make it +4 or does it stay -4?\r
\n" ); document.write( "\n" ); document.write( "Thanks for your help. It is much appreciated.
\n" ); document.write( "

Algebra.Com's Answer #345015 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
\"%284i%29%2F%283%2Bi%29\"......both sides multiply by \"3-i\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28%284i%29%283-i%29%29%2F%28%283%2Bi%29%283-i%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%2812i-4i%5E2%29%2F%289-i%5E2%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%2812i-4i%5E2%29%2F%289-%28-1%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%2812i-4i%5E2%29%2F%289%2B1%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%2812i-4i%5E2%29%2F10\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28cross%2812%296i-cross%284%292%28-1%29%29%2Fcross%2810%295\"\r
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\n" ); document.write( "\n" ); document.write( "\"%286i%2B2%29%2F5\"\r
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\n" ); document.write( "\n" ); document.write( "\"2%2F5%2B6i%2F5\"\r
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