document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=145555>Question 145555</A>: <I><SPAN STYLE=\"word-break: break-all;\">           <BR>\n" );
document.write( "     Solve the inequality x squar > 16 and give the answer in interval notation.<BR>\n" );
document.write( "     This would be x squar - 16> 0 so graph y = x squar - 16 and look for where it is above the x-axis.\r<BR>\n" );
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document.write( "I use College Algebra Book ISBN-13 978-0-618-77629-0\r<BR>\n" );
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document.write( "Thank You </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #106213 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=106213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve the inequality x squar > 16 and give the answer in interval notation.<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( "Draw a number line and label x=4 and x=-4<BR>\n" );
document.write( "That divides the line into three intervals.<BR>\n" );
document.write( "Check a test value in the inequality from <BR>\n" );
document.write( "each of the intervals to see where the <BR>\n" );
document.write( "solution set lies.<BR>\n" );
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document.write( "If x = -10 you get (-10+4)(-10-4) >0; true so solutions in (-inf,-4)<BR>\n" );
document.write( "If x = 0 you get (0-4)(0+4) >0 ; false so no solutions in (-4,4)<BR>\n" );
document.write( "If x = 10 you gt (10-4)(10+4)>0 ; true so solutions in (4,+inf)<BR>\n" );
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document.write( "Final Answer:<BR>\n" );
document.write( "(-inf,-4)U(4,+inf)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
document.write( " </SPAN>\n" );
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