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posted by Anonymous Thursday, January 31, 2013 at 12:50am.

If f(x)=[(6x^3)-3]/x^4 a)find f' (x) b) find f'(4)

use the quotient rule f ' (x) = ( x^4(18x^2) - 4x^3(6x^3 - 3) )/x^8 simplify if needed, then evaluate f ' (4)

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