document.write( "Question 339888: How to know if the algebra expression is positive or negative? How use the number line to joing it? for example a + b how to know where of this its positive or negative. \n" ); document.write( "
Algebra.Com's Answer #243536 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! You don't know without knowing the values of a and b. \n" ); document.write( " \n" ); document.write( " |