document.write( "Question 545704: what is the domain of Log3 (x^2-9)? \n" ); document.write( "
Algebra.Com's Answer #359290 by lwsshak3(11628)\"\" \"About 
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what is the domain of Log3 (x^2-9)
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\n" ); document.write( "You can only take the log of a number>0, (regardless of base)
\n" ); document.write( "x^2+9>0
\n" ); document.write( "(x+3)(x-3)>0
\n" ); document.write( "number line
\n" ); document.write( "<...+...-3....-.....3.....+...>
\n" ); document.write( "Domain: (-∞,-3) U (3, ∞)
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