document.write( "Question 31422This question is from textbook Amsco's
\n" ); document.write( ": (5-4i)^2 \n" ); document.write( "

Algebra.Com's Answer #18135 by stanbon(75887) $\"\"$ $\"About$

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(5-4i)^2 = 5^2-40i+(4i)^2
\n" ); document.write( "= 25-40i-16
\n" ); document.write( "=9-40i
\n" ); document.write( "Cheers,
\n" ); document.write( "stan H. \n" ); document.write( "

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