$$(-\frac{2}{7})^{-4}\times(-\frac{7}{5})^{2}$$
$\frac{117649}{400}=294.1225$
$$\frac{2401}{16}\left(-\frac{7}{5}\right)^{2}$$
$$\frac{2401}{16}\times \frac{49}{25}$$
$$\frac{117649}{400}$$
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$\frac{7 ^ {6}}{2 ^ {4} \cdot 5 ^ {2}} = 294\frac{49}{400} = 294.1225$
