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by ErikaPrepScholar » Wed Nov 22, 2017 9:38 am
This question relies on knowing a power rule:

$$\left(b^n\right)^m=b^{n\cdot m}$$

Plugging in x^x for x gives

$$\left(x^x\right)^{x^x}$$

Applying the power rule gives

$$x^{x\cdot x^x}$$

Which simplifies to

$$x^{x^{x+1}}$$
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