document.write( "Question 1192919: Hi, I am confused on how to do this one.
\n" ); document.write( "|x-3|+4|x+2|>17
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Algebra.Com's Answer #824862 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!


\n" ); document.write( "\"abs%28x-3%29%2B4%2Aabs%28x%2B2%29%3E17\"

\n" ); document.write( "The critical points of the function on the left (where the behavior of the function changes) are at x=3 and x=-2. To solve the inequality, look for solutions on three intervals: (1) -infinity to -2; (2) -2 to 3; and (3) 3 to infinity.

\n" ); document.write( "(1) -infinity to -2....

\n" ); document.write( "On this interval, |x-3| = -x+3 and |x+2| = -x-2

\n" ); document.write( "\"%28-x%2B3%29%2B4%28-x-2%29%3E17\"
\n" ); document.write( "\"-x%2B3-4x-8%3E17\"
\n" ); document.write( "\"-5x-5%3E17\"
\n" ); document.write( "\"-22%3E5x\"
\n" ); document.write( "\"x%3C-22%2F5\"
\n" ); document.write( "\"x%3C-4.4\"

\n" ); document.write( "This solution is completely within the interval we are working in, so it is part of the solution to the inequality.

\n" ); document.write( "ANSWER (first part): Part of the solution set is the interval (-infinity,-4,4)

\n" ); document.write( "(2) -2 to 3....

\n" ); document.write( "On this interval, |x-3| = -x+3 and |x+2| = x+2

\n" ); document.write( "\"%28-x%2B3%29%2B4%28x%2B2%29%3E17\"
\n" ); document.write( "\"-x%2B3%2B4x%2B8%3E17\"
\n" ); document.write( "\"3x%2B11%3E17\"
\n" ); document.write( "\"3x%3E6\"
\n" ); document.write( "\"x%3E2\"

\n" ); document.write( "In the interval from -2 to 3, the only part that is in the solution set is x>2.

\n" ); document.write( "ANSWER (second part): Part of the solution set is the interval (2,3]

\n" ); document.write( "(3) 3 to infinity....

\n" ); document.write( "On this interval, |x-3| = x-3 and |x+2| = x+2

\n" ); document.write( "\"%28x-3%29%2B4%28x%2B2%29%3E17\"
\n" ); document.write( "\"x-3%2B4x%2B8%3E17\"
\n" ); document.write( "\"5x%2B5%3E17\"
\n" ); document.write( "\"5x%3E12\"
\n" ); document.write( "\"x%3E2.4\"

\n" ); document.write( "This inequality is satisfied on the entire interval we are working in, so this entire interval is part of the solution set.

\n" ); document.write( "ANSWER (third and last part): Part of the solution set is the interval [3,infinity).

\n" ); document.write( "ANSWER: The solution set of the inequality is the union of the three solution sets we found in the three intervals: (-infinity, -4.4) U (2,infinity)

\n" ); document.write( "A graph of the absolute value function (red) and the constant function 17 (green) shows the behavior of the absolute value function changing at x=-2 and x=3; and it shows the absolute value function being greater than 17 to the left of x=-4.4 and to the right of x=2.

\n" ); document.write( "\"graph%28600%2C340%2C-6%2C4%2C-4%2C30%2Cabs%28x-3%29%2B4%2Aabs%28x%2B2%29%2C17%29\"

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