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document.write( "In your rational function, the numerator is equal to (x-4)*(x+3),\r\n" );
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document.write( "while the denominator is (x-2)*(x+3).\r\n" );
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document.write( "Therefore, this rational function is equal to\r\n" );
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> 0 (1)\r\n" );
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document.write( "everywhere, where the last rational function is defined, except x= -3, where the original rational function is not defined, at all.\r\n" );
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document.write( "Thus our task is to find the solutions of the inequality (1) everywhere, except x= -3.\r\n" );
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document.write( "The function (1) has two critical points x= 4 and x= 2, where the numerator and denominator change their signs.\r\n" );
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document.write( "In the interval x < 2, both the numerator and denominator of the function (1) are negative; so the function (1) is positive.\r\n" );
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document.write( "In the interval 2 < x < 4, the numerator of (1) is negative, while the denominator is positive, so the function (1) is negative.\r\n" );
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document.write( "In the interval x > 4, both the numerator and denominator of (1) are positive, so the function (1) is positive.\r\n" );
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document.write( "Now I am ready to present the \r\n" );
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document.write( "ANSWER : The original function is positive in the intervals \r\n" );
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document.write( " (
,
), (-3,2), and (
,
).\r\n" );
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document.write( "Solved.\r
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