Question

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Answer 1

Answer:

Below:

Step-by-step explanation:

When finding the power of a power, simplify the expression by multiplying the exponents

$a^{m^n} =m^m^n$

12^4^-5 = $12^{4*-5$$=12^-20=\frac{1}{12^{20}}$

$(-3)^{72}$