document.write( "Question 239174: what is the real part of the standard form of the expression (5+i)(10-i) \n" ); document.write( "
Algebra.Com's Answer #175685 by ankor@dixie-net.com(22740)\"\" \"About 
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(5+i)(10-i)
\n" ); document.write( "FOIL this
\n" ); document.write( "50 - 5i + 10i -i^2
\n" ); document.write( ":
\n" ); document.write( "50 + 5i - (-1)
\n" ); document.write( ":
\n" ); document.write( "50 + 5i + 1
\n" ); document.write( "which is
\n" ); document.write( "51 + 5i
\n" ); document.write( ":
\n" ); document.write( "51 is the real part
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