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((1-(4*x^2))/(x^3))'The calculation above is a derivative of the function f (x)
((1-(4*x^2))'*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
(((-(4*x^2))'+(1)')*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
((4*(x^2)'+(4)'*x^2+(1)')*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
((4*(x^2)'+0*x^2+(1)')*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
((4*2*x^(2-1)+0*x^2+(1)')*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
((4*2*x+0*x^2+(1)')*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
((0-8*x)*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
(-8*x*x^3-((1-(4*x^2))*(x^3)'))/((x^3)^2)
(-8*x*x^3-((1-(4*x^2))*3*x^(3-1)))/((x^3)^2)
(-8*x*x^3-((1-(4*x^2))*3*x^2))/((x^3)^2)
(-3*x^2*(1-(4*x^2))-(8*x^4))/(x^6)
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