document.write( "Question 1198995: If (1-i)(3+i) = a + bi. What is the value of a + b \n" ); document.write( "
Algebra.Com's Answer #832673 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "If \"%281-i%29%283%2Bi%29+=+a+%2B+bi\". What is the value of \"a+%2B+b\"\r
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\n" ); document.write( "\n" ); document.write( "\"%281-i%29%283%2Bi%29+=+a+%2B+bi\"\r
\n" ); document.write( "\n" ); document.write( "\"1%2A3%2B1%2Ai-i%2A3-i%2Ai+=+a+%2B+bi\"\r
\n" ); document.write( "\n" ); document.write( "\"3%2Bi-3i-i%5E2+=+a+%2B+bi\"\r
\n" ); document.write( "\n" ); document.write( "\"3-2i-%28-1%29+=+a+%2B+bi\"\r
\n" ); document.write( "\n" ); document.write( "\"3-2i%2B1+=+a+%2B+bi\"\r
\n" ); document.write( "\n" ); document.write( "\"4+-+2i=+a+%2B+bi\"\r
\n" ); document.write( "\n" ); document.write( "=>\"a=4\",\"+b=2\"\r
\n" ); document.write( "\n" ); document.write( " the value of\"+a+%2B+b=4%2B2=6\"\r
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