>>11118042i learned math not in English but in my mother language so I got confused about the expression "squared"
however think about multiplying with -1. That's like changing the number's "direction" to its opposite, like rotating it 180 degrees. What if you broke that process down into 2 phases, by rotating it 90 degrees twice? you need a number that when multiplied by itself is -1. that's i. which by itself is like 1 except its direction is at 90 degrees angle relative real numbers.
