document.write( "Question 40620: \n" ); document.write( "Solve each rational inequality and state the solution set using interval notation.\r
\n" ); document.write( "\n" ); document.write( "x + 3/x lessthan or eqaul to -2
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\n" ); document.write( "(I don't know why this dosen't post right. x + 3 over x is lessthen or eqaul to -2)
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Algebra.Com's Answer #26019 by junior403(76)\"\" \"About 
You can put this solution on YOUR website!
Solve the rational inequality and state the solution set using interval notation.
\n" ); document.write( "\"%28x%2B3%29%2F%28x%29%3C=+-2\"
\n" ); document.write( "Ok, first we need to eliminate the fraction \"%28x%2B3%29%2F%28x%29\" by multiplying both sides of the equation by the denominator x.
\n" ); document.write( "This will create an equation that we can work with more easily.
\n" ); document.write( "\"x%28%28x%2B3%29%2F%28x%29%29%3C=+-2%28x%29\"
\n" ); document.write( "Now we can simplify by canceling out the x's on the left side and multiplying on the right.
\n" ); document.write( "\"x%2B3%3C=+-2x\"
\n" ); document.write( "Now we can subtract the x from both sides of the equation...
\n" ); document.write( "x + 3 - x = 3 and -2x -x = -3x
\n" ); document.write( "so...
\n" ); document.write( "\"3%3C=+-3x\"
\n" ); document.write( "Now, this may get a little tricky...
\n" ); document.write( "We need to isolate the variable x. In order to do that we need to divide both sides by -3.
\n" ); document.write( "However, the rule for inequalities is that when we divide by a NEGATIVE number, we ALWAYS have to chanbge the inequality sign. so...
\n" ); document.write( "\"3%3C=+-3x\" 3/-3 = -1 and 3x/3 = x
\n" ); document.write( "And remember to change the sign.
\n" ); document.write( "So...
\n" ); document.write( "\"-1%3E=+x\"
\n" ); document.write( "So this tells us that our variable x will always be less than or equal to -1.
\n" ); document.write( "The bracket ] tells us that -1 is included.
\n" ); document.write( "So we show this in interval notation...
\n" ); document.write( "(-~,-1] or (negative infinity, -1]
\n" ); document.write( "I hope this helps.
\n" ); document.write( "Good Luck!
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