SOLUTION: i dont understand how to divide powers like 10 to the 9th power divided by 10 to the 7th power or like 2 to the 8th power divided by 2 to the 3rd power and monomial powers divided

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Question 21689: i dont understand how to divide powers like 10 to the 9th power divided by 10 to the 7th power or like 2 to the 8th power divided by 2 to the 3rd power and monomial powers divided
Found 2 solutions by stanbon, lexis_utler:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
That exponent on a number, like 10, tells
you how many of that number you are going
to multiply.
For example 2^3 means 2*2*2.
So, 10^9/10^7 means you have nine tens in the
numerator and seven in the denominator.
So, seven of the 10's in the numerator get
canceled leaving you with two or 10^2.
Similarly with the 2's. You have eight
in the numerator and 3 in the denominator.
You end up with 5 two's in the numerator or
2^5.
Cheers
Stan H.

Answer by lexis_utler(1) About Me  (Show Source):
You can put this solution on YOUR website!
first figure out 10 to the 9th power. Which is 10 multiplied 9 times.
(ex. 10x10x10x10x10x10x10x10x10)
then figure out 10 to the 7th power.
(ex.10x10x10x10x10x10x10)
divide 10 to the 9th power by 10 to the 7th power,
and then you've got your answer.