Answer:
Explanation:
This unfortunately (or fortunately depending on how you look at it) has one and only one answer and if you know how to handle it, you can let your calculator take a vacation.
The answer is a.
Here's how you know
Anything to the zero power is 1. So -2^0 looks like this - (2)^0 = - 1
The other three answers all give incorrect interpretations of what the question is saying.
Without the brackets, the minus sign is not affected by whatever the power is doing. What ever answer you get will be influenced by the minus sign
For example, if n = 1
then -2^1 = -(2) = - 2
if n = 2
then - 2^2 = - (2^2) = - (4) = - 4
I'm showing you as well that A is completely right. C is close but the first term is incorrect.
D is wrong. The signs don't alternate. Same problem with B.