Simplify the expression. Write answer with positive exponents. Variables are positive real numbers.
-$\left(b^{7}\right)^{2 / 7}$
A) $b^{2 / 49}$
B) $b^{9 / 7}$
C) $b^{2}$
D) $b^{1 / 7}$

Question

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The Answer of Simplify the expression. Write answer with positive exponents. Variables are positive real numbers.
-$\left(b^{7}\right)^{2 / 7}$
A) $b^{2 / 49}$
B) $b^{9 / 7}$
C) $b^{2}$
D) $b^{1 / 7}$

Simplify the Expression (b7)2/7\left(b^{7}\right)^{2 / 7}(b7)2/7 A) b2/49b^{2 / 49}b2/49 B) b9/7b^{9 / 7}b9/7

Simplify the Expression $\left(b^{7}\right)^{2 / 7}$ A) $b^{2 / 49}$ B) $b^{9 / 7}$