Simplifying Exponents (exponent laws)

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So I have this equation:

$${\left(\left(\frac{w}{x}\right)^{\frac{y}{x}}\right)}^{\frac{z}{x}}$$

And I know that

$${\left(a^b\right)}^c = a^{bc}$$

So I figured I'd simplify it into this:

$$\left(\frac{w}{x}\right)^{\frac{y}{x}\frac{z}{x}}$$

And then further into this:

$$\left(\frac{w}{x}\right)^{\frac{yz}{x^2}}$$

But for some reason, it doesn't appear to be working in all cases. What did I do wrong?

EDIT: In response to the Unclear what you're asking close votes, I am requesting assistance in finding the error in my simplification.

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The problem most likely occurs in the way you are calculating your answers.

In general, a calculator will provide one answer to $a^{\frac1b}$, when there are actually $b$ existing roots.

Your math is perfectly fine, I believe it is your calculator that is the issue.