Look at this list of whole number powers of -2: (-2)0 = 1 (-2)1 = -2 (-2)2 = 4 (-2)3 = -8 (-2)4 = 16 (-2)5 = -32 (-2)6 = 64 Notice how they alternate signs, positive and negative. Even powers are positive and odd powers are negative.could -2 be used as a base to rewrite 32?
No, because 32 is not a whole number power of -2. (The answer would be 'yes' for -32, but not for +32).could -2 be used as a base to rewrite 64?
Yes, because 64 is the 6th power of -2. Edwin