Substituting x=3 in the derivative of y=3x(x−2)2 gives 2133
the equation of a curve is y= x^2-5x-24/x
find the gradient of the curve at each of the point were the curve crosses the x-axis how would you do this sorry for asking for so much help but im a thicko that has been doing this for neardy 1 1/2 days straight