document.write( "Question 175942This question is from textbook Algebra and Trigonometry Structure and Method book 2
\n" ); document.write( ": I have been working on this math problem and I can't figure out how to get the answer. I was wondering if someone could help me? Please and Thank You!! I would deeply appreciate it!!\r
\n" ); document.write( "\n" ); document.write( "Simplify each expression. If the expression does not represent a real number say so.
\n" ); document.write( "a. square root of -a^2
\n" ); document.write( "b. square root of (-a)^2
\n" ); document.write( "c. index=4 square root of a^4
\n" ); document.write( "d. square root of a^6
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Algebra.Com's Answer #131050 by nerdybill(7384)\"\" \"About 
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a. square root of -a^2
\n" ); document.write( "\"-sqrt%28a%5E2%29\"
\n" ); document.write( "\"-a\"
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\n" ); document.write( "b. square root of (-a)^2
\n" ); document.write( "\"sqrt%28-a%5E2%29\"
\n" ); document.write( "\"ai\"
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\n" ); document.write( "c. index=4 square root of a^4
\n" ); document.write( "I'm assuming you want the \"fourth root\" of a^4
\n" ); document.write( "Because a^4 = a*a*a*a
\n" ); document.write( "then the fourth root of a^4= a
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\n" ); document.write( "d. square root of a^6
\n" ); document.write( "\"sqrt%28a%5E6%29\"
\n" ); document.write( "\"sqrt%28a%5E3%2Aa%5E3%29\"
\n" ); document.write( "\"a%5E3\"
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