document.write( "Question 250985: Use at least one inequality or compound inequality to express the answer. For answers with more than one inequality use a comma or the word 'or' to seperate the answers. \r
\n" ); document.write( "\n" ); document.write( "(x+5) (x-20) (x+3) > 0\r
\n" ); document.write( "\n" ); document.write( "Solution set is:\r
\n" ); document.write( "\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #182762 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Use at least one inequality or compound inequality to express the answer. For answers with more than one inequality use a comma or the word 'or' to seperate the answers.
\n" ); document.write( "(x+5) (x-20) (x+3) > 0
\n" ); document.write( "------------
\n" ); document.write( "Find values of x which are not part of the solution:
\n" ); document.write( "x = -5, x= 20, x = -3
\n" ); document.write( "-----------------------------
\n" ); document.write( "Draw a number line and plot x = -5,-3,20
\n" ); document.write( "-----------------------------
\n" ); document.write( "Test a value in each of the four open intervals
\n" ); document.write( "in the inequality to see where the solutions lie.
\n" ); document.write( "Note: You need only check the sign of the product.
\n" ); document.write( "---
\n" ); document.write( "If x = -7 you get: -*-*- < 0 so no solutions in (-inf,-5)
\n" ); document.write( "---
\n" ); document.write( "If x = -4 you get: +*-*- > 0 so solutions in (-5,-3)
\n" ); document.write( "---
\n" ); document.write( "If x = 19 you get: +*-*+ < 0 so no solutions in (-3,20)
\n" ); document.write( "---
\n" ); document.write( "If x = 21, you get: +*+*+ > 0 so solutions in (20,+inf)
\n" ); document.write( "===========================================================
\n" ); document.write( "Solution: (-5,-3)U(20,+inf)
\n" ); document.write( "===========================================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );