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Simplify $\left(\left(7^m+\frac{21^m}{21^m}+63^m\right)^{\frac{1}{m}}\right)^{-4}$ using the power of a power property: $\left(a^m\right)^n=a^{m\cdot n}$. In the expression, $m$ equals $\frac{1}{m}$ and $n$ equals $-4$
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$\left(7^m+\frac{21^m}{21^m}+63^m\right)^{-4\left(\frac{1}{m}\right)}$
Learn how to solve powers of powers problems step by step online. Simplify the power of a power (7^m+(21^m)/(21^m)63^m)^(1/m)^(-4). Simplify \left(\left(7^m+\frac{21^m}{21^m}+63^m\right)^{\frac{1}{m}}\right)^{-4} using the power of a power property: \left(a^m\right)^n=a^{m\cdot n}. In the expression, m equals \frac{1}{m} and n equals -4. Simplify the fraction \frac{21^m}{21^m} by 21^m. Multiplying the fraction by -4.