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((7*x+7)/(6*x+3))'The calculation above is a derivative of the function f (x)
((7*x+7)'*(6*x+3)-((7*x+7)*(6*x+3)'))/((6*x+3)^2)
(((7*x)'+(7)')*(6*x+3)-((7*x+7)*(6*x+3)'))/((6*x+3)^2)
((7*(x)'+(7)'*x+(7)')*(6*x+3)-((7*x+7)*(6*x+3)'))/((6*x+3)^2)
((7*(x)'+0*x+(7)')*(6*x+3)-((7*x+7)*(6*x+3)'))/((6*x+3)^2)
((0*x+7*1+(7)')*(6*x+3)-((7*x+7)*(6*x+3)'))/((6*x+3)^2)
((0+7)*(6*x+3)-((7*x+7)*(6*x+3)'))/((6*x+3)^2)
(7*(6*x+3)-((7*x+7)*(6*x+3)'))/((6*x+3)^2)
(7*(6*x+3)-((7*x+7)*((6*x)'+(3)')))/((6*x+3)^2)
(7*(6*x+3)-((7*x+7)*(6*(x)'+(6)'*x+(3)')))/((6*x+3)^2)
(7*(6*x+3)-((7*x+7)*(6*(x)'+0*x+(3)')))/((6*x+3)^2)
(7*(6*x+3)-((7*x+7)*(0*x+6*1+(3)')))/((6*x+3)^2)
(7*(6*x+3)-((7*x+7)*(0+6)))/((6*x+3)^2)
(7*(6*x+3)-((7*x+7)*6))/((6*x+3)^2)
(7*(6*x+3)-(6*(7*x+7)))/((6*x+3)^2)
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