document.write( "Question 159415: What is the domain of \r
\n" ); document.write( "\n" ); document.write( "sqrt(8-sqrt(8-x))
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Algebra.Com's Answer #117555 by Fombitz(32388)\"\" \"About 
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The domain is the values of x where the function makes sense.
\n" ); document.write( "For square root functions to make sense, the argument must be greater or equal to 0.
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\n" ); document.write( "\"f%28x%29=sqrt%288-sqrt%288-x%29%29\"
\n" ); document.write( "First off,
\n" ); document.write( "\"8-x%3E=0\"
\n" ); document.write( "\"x%3C=8\"
\n" ); document.write( "The upper bound for x is 8.
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\n" ); document.write( "The second argument must also be greater than or equal to 0.
\n" ); document.write( "\"8-sqrt%288-x%29%3E=0\"
\n" ); document.write( "\"sqrt%288-x%29%3C=8\"
\n" ); document.write( "\"%288-x%29%3C=64\"
\n" ); document.write( "\"-x%3C=56\"
\n" ); document.write( "\"x%3E=-56\"
\n" ); document.write( "The domain for x is [56,8]
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