document.write( "Question 93425This question is from textbook
\n" ); document.write( ": sqrt (-36) simplify please help me learn this and show all work. \n" ); document.write( "
Algebra.Com's Answer #68009 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "
Solved by pluggable solver: Simplifying Square Roots (whole numbers only)

\n" ); document.write( "
\n" ); document.write( " \"sqrt%28-36%29\" Start with the given expression
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( " \"sqrt%28-1%2A36%29\" Factor out a negative 1
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( " \"sqrt%28-1%29%2Asqrt%2836%29\" Break up the square roots using the identity \"sqrt%28x%2Ay%29=sqrt%28x%29%2Asqrt%28y%29\"
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( " \"i%2Asqrt%2836%29\" Replace \"sqrt%28-1%29\" with \"i\" (remember \"i=sqrt%28-1%29\")
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( " Now lets simplify \"sqrt%2836%29\":
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( " Since 36 is a perfect square, we can take the square root of 36 to get a clean number
\n" ); document.write( "
\n" ); document.write( " \"sqrt%2836%29=6\"
\n" ); document.write( "
\n" ); document.write( " So \"sqrt%28-36%29\" simplifies to \"6%2Ai\" (just reintroduce \"i\" back in)
\n" ); document.write( "
\n" ); document.write( "
\n" );