(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Without using a calculator, find the solution to

[tex] \sqrt[3]{0.64 * 10^8}[/tex]

3. The attempt at a solution

Well, I figure I want to get everything into powers of 3.

4^3 = 64, but that leaves 100 as the denominator to get 0.64, which does not play well with ^3.

I can split 10^8 into 10^3 * 10^3 * 10^2, but I dont see how that helps since I'm left with 10^2.

I can get to [tex]100 * \sqrt[3]{0.64 * 10^2}[/tex] which does give 400 (the correct answer).

So, what am I missing here?

k

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# Homework Help: Help with roots problem

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