Answer: (-7)(-7)(-7) is equal to -7^3 (just imagine that the three is on the top right outer corner of the 7)
Explanation:
A power is when you multiply a number by itself a certain number of times, in this case, we are multiplying the number 7 by itself 3 times. Every time it is multiplied by its self, the power of that number goes up (if you are using a power of one for any number, it will stay the same). Here is an example:
-7 to the first power is just -7.
-7 to the second power, or squared is just (-7)(-7) or (-7) x (-7).
-7 to the third power, or cubed, is just (-7)(-7)(-7) or (-7) x (-7) x (-7).
Hope this helps!!!