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in a problem like n4=625

you need to do a mult-step equations

In the example, 4log n = log 625

log n = (log 625)/4

n = 10^[(log 625)/4] = 5

Although this particular answer is obvious, you could also solve n5=625, or any other power of n, which isn't, using this method.

hope that it is helpful to you!

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Q: How do you find the base and exponent of a number?
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