+6251 a trick? tough to say...
suppose you have |x|
if (x>=0), whatever x might be, then |x| = x
if (x<=0), then |x| = -x
that about as simple as it can be made.
so basically if x is negative, or less than zero, the absolute value of x will be the opposite. So if x= -76 then the absolute value of x will be +76. However if x is positive, or greater than zero, the absolute value of x will be the same as x. So if x=53, then the absolute value of x will still be 53. It works the same for expressions. For example, the expression |3-8| You solve the expression inside the absolute value signs as you would if they were brackets/parentheses. So, |3-8|= |- 5|, which, since it is negative, is flipped and becomes +5.
