## Algebra: A Combined Approach (4th Edition)

when n is an odd number, $(-3)^n$ will be a negative number. and when n is an even number, $(-3)^n$ will be a positive number.
when n is an odd number, $(-3)^n$ will be a negative number. and when n is an even number, $(-3)^n$ will be a positive number. (There will be an even number of negative multiplication.)