document.write( "Question 252903: give the principal roots of each of the following.(for sqaure root is required unless the problem indicates otherwise.)\r
\n" ); document.write( "\n" ); document.write( "5. square root of 49 \r
\n" ); document.write( "\n" ); document.write( "6.square root of -27 cubed
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Algebra.Com's Answer #185013 by drk(1908)\"\" \"About 
You can put this solution on YOUR website!
\"5sqrt%2849%29\"
\n" ); document.write( "the \"sqrt%2849%29\" = 7, so
\n" ); document.write( "we get 5x7 = 35.
\n" ); document.write( "--
\n" ); document.write( "\"sqrt%28-27%29%5E3\"
\n" ); document.write( "\"%28-27%29%5E3+=+%28%28-3%29%5E3%29%5E3+=+%28-3%29%5E9\"
\n" ); document.write( "So,
\n" ); document.write( "\"sqrt%28%28-3%29%5E9%29\".
\n" ); document.write( "I don't know what you know about negative square roots: We have one of two answers:
\n" ); document.write( "(i) no solution.
\n" ); document.write( "\"sqrt%28%283%29%5E9%29+%2A+sqrt%28%28-1%29%5E9%29\"
\n" ); document.write( "81sqrt(3) x i
\n" ); document.write( "(ii) 80isqrt(3)
\n" ); document.write( "
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