math
7th Grade - Powers

7th Grade lesson

3 - Power of a number


2 to the power of 5 is the number power. It is equal to calculating the power.

With the same calculation :
calculating the power
calculating the power
calculating the power

If the power number (the number on top) is negative, it is quite strange but you must do the following :
calculating the power of a negative power
calculating the power of a negative power
calculating the power of a negative power

Now let's have a look at something practical :



Hence, by gathering the 3, we see that : power property
We can write :
power property
power of a sum
power of a sum
power of a sum
power of a sum
In fact :

power of a sum

Also, you have to know that a number to the power 0 is always 1.
power with no exponet
power with no power
power with no power
power with no power
power with no power
power with no power
power with no power

On the other hand, zero to the power zero does not exist , it does not make sense.
Now that you know that power of a sum, you should also know that power of a difference. Hence :
power of a difference
calculating power
calculating power
calculating power

and that 2 to the power 3 to the power 4 is equal to 2 to the power 12 : calculating the power of power
So :

power of  power


There you go, that's it...You can do the problems to check if you have understood.



>>> Lesson on scientific notation >>>


Powers

Lessons, problems