Simplify the expression. Write answer with positive exponents. Variables are positive real numbers.
-$\left(\frac{b^{-8 / 5}}{t^{-8 / 7}}\right)^{4}\left(b^{-1 / 8} t^{1 / 7}\right)^{-2}$
A) $\frac{b^{133 / 20}}{t^{34 / 7}}$
B) $\frac{b^{123 / 20}}{t^{30 / 7}}$
C) $\frac{t^{34 / 7}}{b^{133 / 20}}$
D) $\frac{t^{30 / 7}}{b^{123 / 20}}$

Question

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The Answer of Simplify the expression. Write answer with positive exponents. Variables are positive real numbers.
-$\left(\frac{b^{-8 / 5}}{t^{-8 / 7}}\right)^{4}\left(b^{-1 / 8} t^{1 / 7}\right)^{-2}$
A) $\frac{b^{133 / 20}}{t^{34 / 7}}$
B) $\frac{b^{123 / 20}}{t^{30 / 7}}$
C) $\frac{t^{34 / 7}}{b^{133 / 20}}$
D) $\frac{t^{30 / 7}}{b^{123 / 20}}$

Simplify the Expression (b−8/5t−8/7)4(b−1/8t1/7)−2\left(\frac{b^{-8 / 5}}{t^{-8 / 7}}\right)^{4}\left(b^{-1 / 8} t^{1 / 7}\right)^{-2}(t−8/7b−8/5​)4(b−1/8t1/7)−2

Simplify the Expression $\left(\frac{b^{-8 / 5}}{t^{-8 / 7}}\right)^{4}\left(b^{-1 / 8} t^{1 / 7}\right)^{-2}$