You can put this solution on YOUR website! We have the following:
(i)
step 1 - rewrite 1/25 as a power if 5.
(ii)
erase the base 5 and solve to get
(iii)
Since the base of the exponent on the left is 5,
we try to write the 25 also as a power of 5. So
write 25 as
Now write the whole right side as a power of 5
by writing it as
Now we use the principle that if two exponentials
are equal which have the same base, and the common base
is positive and not 1, then the exponents are
equal:
Edwin
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