document.write( "Question 529168: how do you do this: (7+5i)(7-5i) \n" ); document.write( "

Algebra.Com's Answer #349506 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%287%2B5i%29%287-5i%29=7%5E2-%285i%29%5E2+=+49-25i%5E2+=+49-25%28-1%29+=+49%2B25+=+74\"$ \r
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\n" ); document.write( "\n" ); document.write( "So $\"%287%2B5i%29%287-5i%29+=+74\"$ \r
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