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math pretty easy and 10 pts for best answer?
(-2) to the 5th power. its pretty easy my dad is paying me to review a bunch of algebra stuff before school starts i forgot how to do that one problem thanx for your help :)
i forgot that i could use my graphing calculator thanx guys i wasn't expecting so many answers
25 Answers
- Anonymous1 decade agoFavorite Answer
The power is an odd number, so it is definitely a negative number. Then, 2^5 is 32 (2 x 2 x 2 x 2 x 2), so the final answer is:
-32
- Anonymous1 decade ago
(-2) to the power of 5 = (-2) X (-2) X (-2) X (-2) X (-2)
You multiply (-2) times itself 5 times. It's NOT (-2) X 5. That's wrong and a common mistake many people make. (-2) to the power of 5 means to multiply (-2) times itself 5 times.
Since 5 is a negative number, you know that the answer with also be negative. When you multiply it all you get (-32) as your final answer.
- 1 decade ago
Andrew is right, it is -32. It is not 32 because it has to be an even amount of multiplying, i.e. 2nd power, 4th power, etc., to be positive.
-2x-2=4, 4x-2=-8, -8x-2=16, 16x-2=-32
Check -2x-2x-2x-2x-2 on the calculator.
The people that are saying otherwise are wrong.
I looked it up on my TI-84. It is not 32, 64, or -64.
- ?Lv 71 decade ago
With all the people giving you answers, you're probably not going to pay attention to this BUT -- next time, post what YOU Think the answer is! Your dad is having you do this for a reason -- to prepare for the upcoming school year. You are not only cheating HIM by posting this, but cheating yourself.
- How do you think about the answers? You can sign in to vote the answer.
- HeartattaxLv 41 decade ago
you see -2 to the fifth power is the same as whats 2*2*2*2*2 since a negative times a negative is always a positive.
so in this case the answer is : 32
hope this helps
Source(s): i got full points on my state math exam so trust me i know my stuff - 1 decade ago
(-2)^5 = -32 (gotten from a calculator)
or rewritten as
-2 * -2 * -2 * -2 * -2 = -32
- 1 decade ago
You just do.
(-2) x (-2) x (-2) x (-2) x (-2)
:D
But don't do (-2) x 5. That's bad. Do it one at a time, first (-2) x (-2) and then keep doing that.
So the answer is -32 :)
- Anonymous1 decade ago
haha nice question! I know, it is so easy to forget things over the summer, I am gonna take a wild guess...
(-2) to the 5th power = -10?
I know, I am really bad at math, I am only 11 but I tried!