$$\frac { ( - 3 x ) ^ { 4 } } { ( 2 x ) ^ { 4 } } ?$$
$\frac{81}{16}=5.0625$
$$\frac{\left(-3\right)^{4}x^{4}}{\left(2x\right)^{4}}$$
$$\frac{81x^{4}}{\left(2x\right)^{4}}$$
$$\frac{81x^{4}}{2^{4}x^{4}}$$
$$\frac{81x^{4}}{16x^{4}}$$
$$\frac{81}{16}$$
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$\frac{3 ^ {4}}{2 ^ {4}} = 5\frac{1}{16} = 5.0625$
