-- Posted by Curtained at 7:09 am on April 5, 2007 I've been told to use them, and I've never found out how. The teacher is giving us an assignment to do this: -------------------------------------- "This assignment involves writing a program that will factor a binomial of the form ax + b.  For example:   6x + 18 = 6(x + 3)             4x - 10 = 2(2x - 5)             -30x + 15 = -15(2x + 1)" -------------------------------------- I'm being told to use a char declaration in order to tell what the variable is.  Problem is, the teacher never tells us how to do these things, nor does he know himself, I think.