Go Premium for a chance to win a PS4. Enter to Win

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 213
  • Last Modified:

Rules for dividing exponents

I know that x^3/x^2=x but what would x^2/x^3 equal?  Would it be x^-1 or just x?

Do you just take the difference between the two exponents or do you subtract them left to right?
0
NevSoFly
Asked:
NevSoFly
2 Solutions
 
aadihCommented:
Answer: x^-1.

Subtract left to right (in your notation).
0
 
phoffricCommented:
>> what would x^2/x^3 equal?  Would it be x^-1
 x^2/x^3 = (x*x) / (x*x*x) = 1/x = x^(-1)

Most exponent rules are easy to verify with a simple expansion as above.
0
 
TommySzalapskiCommented:
If you ever get stuck on a similar problem, try plugging in numbers and see what makes sense.

Let's plug 10 in for x in your original question and see what happens:
I know that 10^3/10^2=10 but what would 10^2/10^3 equal?  Would it be 10^-1 or just 10?

or

I know that 1000/100=10 but what would 100/1000 equal?  Would it be 1/10 or just 10?


Now you have both the answer and the reason behind the answer.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now