document.write( "Question 330853: I seem to be having some trouble with inequalities.
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document.write( "Its a really simple problem but I keep finding no solution I could really use some help.\r
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document.write( "x2 - 9 > 0\r
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document.write( "A x < -3 or x > 3
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document.write( "B -3 < x < 3
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document.write( "C x < -3 or x > 2
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document.write( "D-3 < x < 2
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document.write( "E -2 < x < 4.5
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document.write( "F for all x \n" );
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Algebra.Com's Answer #237175 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( "Break up the number line into 3 regions. \n" ); document.write( "Region 1:( \n" ); document.write( "Region 2:( \n" ); document.write( "Region 3:( \n" ); document.write( "Pick a point in each region (not an endpoint). \n" ); document.write( "Test the inequality. \n" ); document.write( "If the inequality is satisfied, the region is part of the solution. \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "Region 1: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "True, this region is part of the solution. \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "Region 2: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "False, this region is not part of the solution. \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "Region 3: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "True, this region is part of the solution. \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "( \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "Graphically, look for the regions where the function is greater than zero (above the x-axis). \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( " |