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# Another exponential function question watch

1. How do you get 3125 to be 25 in this question? 25^2=3125^(x+5)
I need to make it 25 so both sides have a 25. I know I can divide 3125 by 125 to get it to equal 25 but what number would I put in the power?
2. (Original post by Airess3)
How do you get 3125 to be 25 in this question? 25^2=3125^(x+5)
I need to make it 25 so both sides have a 25. I know I can divide 3125 by 125 to get it to equal 25 but what number would I put in the power?
I would express both 25 and 3125 as powers of 5.

Once you have 3125 as a power of 5, say 3125 = 5^a then so which rule of indices do you use?

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