Lorenaxo Lorenaxo

21-11-2014
Mathematics

contestada

Why can we subtract exponents when we are dividing two things with the same base?

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Derpina Derpina

21-11-2014

(1 * 10^5) / (5 * 10^3) is going to subtract to be 2 * 10 and equal 20. It is the same as multiplying it all out, which would be 100,000 / 5,000 and still equal 20.

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