SOLUTION: Write 9/400 as the difference of two consecutive number with exponent as �2

Question 1118712: Write 9/400 as the difference of two consecutive number with exponent as �2
Found 3 solutions by greenestamps, josgarithmetic, ikleyn:
Answer by greenestamps(13203)   (Show Source): You can put this solution on YOUR website!

The language is not standard usage; I don't know what it means ("...with exponent as -2").

If I were to guess, I would say the problem is to find consecutive integers x and x+1 for which

However, I'm not inclined to spend a lot of time and effort on a problem and then find out that my interpretation was not right.

So re-post your question using standard terminology, so we know what problem to help you with.
Answer by josgarithmetic(39626)   (Show Source): You can put this solution on YOUR website!
Not too clear!

x and x+1 so that ?
Maybe better if as ;

or maybe ?
This second interpretation is no good.
Answer by ikleyn(52858)   (Show Source): You can put this solution on YOUR website!
.
Write 9/400 as the difference of two consecutive numbers with exponents �2.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

- = = = . At this point, the solution can be find mentally and momentarily: x = 4. Check. At x= 4, = = = . ! Correct !

By the way, x= -5 also works and is another solution :    - = .

===============

OK, I admit that you don't know English perfectly.

But do you know at least your native language ? ?

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