The book is just showing the pattern
Stupid question of the week. My book says "notice each number in
is the square of the preceding one"
In other words
. \checkmark (or \checkbox, or...whatEVER).
I mean, two squared is usually four, right?
Isn't ? (Actually, I know the answer: Yes.)
So what's wrong with my "But also..." line?
Oh, wait a minute (brain fart, or somethin' like that ).
Somehow, on paper, I was getting b^6. Then I typed it in here, and mindlessly calculated the correct value.
(I knew this was going to be an embarrassing question. Oh well. )