# Question #f12fd

##### 1 Answer

Apr 26, 2015

Ok. The difference is 0 if

Now we need to write both sides with the same base.

The last line can only be true if

Check:

Apr 26, 2015

Ok. The difference is 0 if

Now we need to write both sides with the same base.

The last line can only be true if

Check:

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