document.write( "Question 239507: how would you begin to solve this problem 1+i over 1+2i + 1-i over 1-2i \n" ); document.write( "
Algebra.Com's Answer #176443 by Alan3354(69443)\"\" \"About 
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how would you begin to solve this problem 1+i over 1+2i + 1-i over 1-2i
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\n" ); document.write( "Get a common DEN, as with any fraction problem.
\n" ); document.write( "CD = (1+2i)*(1-2i) = 5
\n" ); document.write( "\"%281%2Bi%29%2F%281%2B2i%29+%2B+%281-i%29%2F%281-2i%29\"
\n" ); document.write( "= \"%28%281%2Bi%29%2A%281-2i%29+%2B+%281-i%29%2A%281%2B2i%29%29%2F3\"
\n" ); document.write( "= \"%281%2B2-i+%2B+1%2B2%2Bi%29%2F3\"
\n" ); document.write( "= 6/3
\n" ); document.write( "= 2\r
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