document.write( "Question 651149: a^2 - 64 = 0 solve and express in simplest radical form \n" ); document.write( "
Algebra.Com's Answer #407570 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"a%5E2+-+64+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"a%5E2=64+\"\r
\n" ); document.write( "\n" ); document.write( "\"a=sqrt%2864%29+\"\r
\n" ); document.write( "\n" ); document.write( "\"a=8+\" and \"a=-8+\"
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