document.write( "Question 585798: When simplifying expressions that involve complex numbers, How do I determine what the values of the numbers will be?
\n" ); document.write( "I need help with solving expressions containing these.
\n" ); document.write( "Ex:
\n" ); document.write( "(4-5i) (1-i)
\n" ); document.write( "(3-4i)/(4-3i) \n" ); document.write( "

Algebra.Com's Answer #373487 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+%284+-+5i%29%2A+%281+-+i%29+\"$
\n" ); document.write( " $\"+1%2A4+-+1%2A5i+-+4i+%2B+5i%5E2+\"$
\n" ); document.write( "Combine like terms. Note that $\"+i%5E2+=+-1+\"$
\n" ); document.write( " $\"+1%2A4+%2B+5%2Ai%5E2+-+5i+-+4i+\"$
\n" ); document.write( " $\"+4+%2B+%28-1%29%2A5+-%28+5i+%2B+4i+%29+\"$
\n" ); document.write( " $\"+4+-+5+-+9i+\"$
\n" ); document.write( " $\"+-1+-+9i+\"$
\n" ); document.write( "---------------
\n" ); document.write( " $\"+%28+3+-+4i+%29%2A%28+4+-+3i+%29+\"$
\n" ); document.write( " $\"+12+-+16i+-+9i+%2B+12i%5E2+\"$
\n" ); document.write( "Combine like terms, again, $\"+i%5E2+=+-1+\"$
\n" ); document.write( " $\"+12+%2B+12%2A%28-1%29+-+%28+16i+%2B+9i+%29+\"$
\n" ); document.write( " $\"+12+-+12+-+25i+\"$
\n" ); document.write( " $\"+-25i+\"$
\n" ); document.write( "--------- \n" ); document.write( "

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