Applicare la formula: $a\ln\left(x\right)$$=\ln\left(x^a\right)$, dove $a=\frac{21}{25}$ e $x=_$

Applicare la formula: $a\ln\left(x\right)$$=\ln\left(x^a\right)$, dove $a=x$ e $x=_^{0.84}$

Simplify $\left(_^{0.84}\right)^x$ using the power of a power property: $\left(a^m\right)^n=a^{m\cdot n}$. In the expression, $m$ equals $0.84$ and $n$ equals $x$