# Thread: simplify

1. ## simplify

absolute value of 13r^2 can be?

2. Originally Posted by rj2001
absolute value of 13r^2 can be?
|13r^2|=13|r^2|=13r^2

13r^2 is always nonnegative (that is greater than or equal to zero. it is zero if r = 0, and greater otherwise), so you can drop the absolute value signs completely