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March 29, 2017

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(5x^-3)^2

  • Physics - ,

    just multiply exponents when raising an expression to a power:

    (5x^-3)^2 = 5^2 (x^-3)^2
    = 25 x^(-3*2)
    = 25x^-6

    recall that (x^-3)^2 is just x^-3 * x^-3 = x^(-3 + -3) = x^-6

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