document.write( "Question 371576: how do you solve this (4 - 7i)(4 + 7i) \n" ); document.write( "

Algebra.Com's Answer #264647 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the FOIL method,
\n" ); document.write( " $\"+%284+-+7i%29%284+%2B+7i%29+=16%2B28i-28i-49i%5E2\"$
\n" ); document.write( " $\"+%284+-+7i%29%284+%2B+7i%29+=16%2B49\"$
\n" ); document.write( " $\"+%284+-+7i%29%284+%2B+7i%29+=highlight%2866%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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