Answers

2016-06-22T20:21:22+08:00
 if the variable or constant has a exponent which is 2 on the upper write side it is considered as squared

0
how about erfect square?
PERFECT SQUARE AS IN AN AREA OF A SQUARE?
yes
IF THE SYMBOL FOR A IS A
YOU CAN FIND OUT IF IT IS A PERFECT SQUARE WHEN THE RIGHT BOTTOM PART OF A HAS A SQUARE