document.write( "Question 535379: I would really appreciate your help!!!! I need to simplify sqrt -81 multiplied by sqrt -36\r
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Algebra.Com's Answer #351873 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+sqrt%28-81%29+%2A+sqrt%28-36%29+\"$
\n" ); document.write( "Note that $\"+sqrt%28-1%29+=+i+\"$
\n" ); document.write( " $\"+sqrt%2881%29%2Asqrt%28-1%29%2Asqrt%2836%29%2Asqrt%28-1%29+\"$
\n" ); document.write( " $\"+sqrt%2881%29%2Ai%2Asqrt%2836%29%2Ai+\"$
\n" ); document.write( " $\"+sqrt%2881%29%2Asqrt%2836%29%2Ai%5E2+\"$
\n" ); document.write( "note that $\"+i%5E2+=+-1+\"$
\n" ); document.write( " $\"+9%2A6%2A%28-1%29+\"$
\n" ); document.write( " $\"+-54+\"$
\n" ); document.write( "Note also that square roots can be + or -,
\n" ); document.write( "so the answer is
\n" ); document.write( " $\"+54+\"$ and $\"+-54+\"$ \n" ); document.write( "

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