Question 480864
2^-3/x^4 all squared multiplied by -2x^3/x-1 all cubed.
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(2^-3/x^4)^2 * (-2x^3/x^-1)^3
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= (1/8x^4)^2 *(-8x^4)^3
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= (-8x^4)^3 / (8x^4)^2
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= (-x^4)
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Cheers,
Stan H.
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