document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=992342>Question 992342</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine the values of the variable for which the expression is defined as a real number. (Enter your answer using interval notation.)\r<BR>\n" );
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document.write( "square root of x^2 &#8722; 16\r<BR>\n" );
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document.write( "I squared the entire thing, so that took care of the square root. Then I factored it into (x-4) (x+4) but thats as far as I got...<BR>\n" );
document.write( "help, please? :( </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #611951 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=611951\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Determine the values of the variable for which the expression is defined as a real number. (Enter your answer using interval notation.) <BR>\n" );
document.write( "square root of x^2 &#8722; 16 <BR>\n" );
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document.write( "sqrt(x^2-16)<BR>\n" );
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document.write( "For the value to be a Real Number, x^2-16 must be >= 0<BR>\n" );
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document.write( "Solve:<BR>\n" );
document.write( "x^2-16 >= 0<BR>\n" );
document.write( "(x-4)(x+4) >= 0<BR>\n" );
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document.write( "Ans: x >= 4 or x <= -4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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