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Choose the equivalent expression(3h^-2j^3k)^2(hj^-5k^3)^-2 The signs that look like minuses are negative signs

Answers: 3h^-6j^16K^-4
9h^-2j^5j^16k^-4
9h^-6j^-4k^-4

Please help-I'm totally lost

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