document.write( "Question 39931This question is from textbook alegbra 1
\n" ); document.write( ": whats the square root of -4 \n" ); document.write( "
Algebra.Com's Answer #25395 by fractalier(6550)\"\" \"About 
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The square root of a negative number is imaginary...in this case
\n" ); document.write( "sqrt(-4) = ±2i
\n" ); document.write( "where i is the imaginary number equal to sqrt(-1) \n" ); document.write( "
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