Basic Math Examples

Evaluate |-5+-8|
|-5+-8|
Step 1
Replace all occurrences of +- with a single -. A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because 1-1=-1
|-5-8|
Step 2
Subtract 8 from -5.
|-13|
Step 3
The absolute value is the distance between a number and zero. The distance between -13 and 0 is 13.
13
 [x2  12  π  xdx ]