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(2^-14 * 5^10)

Step-by-step explanation:

(2^-7 * 5^5)^2

From.the law of indices :

(a^m)^n = a^mn

Such that we multiply both powers

Hence the equation, W will become :

2^(-7*2) * 5^(5*2) = (2^-14 * 5^10)