document.write( "Question 242583: how do you do $\"%283%2B4i%29%283-4i%29\"$ \n" ); document.write( "

Algebra.Com's Answer #177587 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
how do you do $\"%283%2B4i%29%283-4i%29\"$
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\n" ); document.write( "Use FOIL:
\n" ); document.write( "F: 3*3 = 9
\n" ); document.write( "O:3*-4i = -12i
\n" ); document.write( "I:4i*3 = 12i
\n" ); document.write( "L:4i*-4i = -16i^2 = 16
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\n" ); document.write( "Combine to see the answer:
\n" ); document.write( "9 + 16 = 25
\n" ); document.write( "================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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