Question 980204
the derivative of g(x) = (2x² / 3) -² is calculated
g(x) = (2^-2 * x^-4) / 3^-2
g(x) = 9 / 4x^4
g(x) = 9 * x^-4 / 4
g'(x) = (-4 * 9 * x^-5) / 4
g'(x) = -9 / x^5
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gradient can be the slope or in vector analysis it is the vector operator
also the gradient function is dy/dx or g'(x) for your problem
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I suspect you want the gradient function