document.write( "Question 542994: radical -5 * radical -2
\n" ); document.write( "type answer in a+bi form ..use radicals as needed.\r
\n" ); document.write( "\n" ); document.write( "Thank you! \n" ); document.write( "

Algebra.Com's Answer #354732 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
radical -5 * radical -2
\n" ); document.write( " $\"sqrt%28-5%29+%2A+sqrt%28-2%29\"$
\n" ); document.write( ":
\n" ); document.write( "Write it
\n" ); document.write( " $\"sqrt%28-1%2A5%29+%2A+sqrt%28-1%2A2%29\"$
\n" ); document.write( ":
\n" ); document.write( "The square root of -1 = i so we have
\n" ); document.write( " $\"i%2Asqrt%285%29\"$ * $\"i%2Asqrt%282%29\"$ = $\"i%5E2%2Asqrt%285%2A2%29\"$
\n" ); document.write( ":
\n" ); document.write( "i^2 = -1 therefore
\n" ); document.write( " $\"-1%2Asqrt%2810%29\"$ = $\"-sqrt%2810%29\"$ \n" ); document.write( "

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