Q- Simplify and write in exponential form.
2⁷ x 10⁵ x 125
    5 ⁹ x 4⁵

If your  question  is $\frac{2^7\times {10}^5\times 125}{5^9\times 4^5}$
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/simplify-and-write-in-exponential-form-25x152-x81-125/exponents-and-powers/9257785
 
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