HO dx x2-20xy+y2 20 Step 1 Recall that the method of implicit differentiation consists of differentiating both sides of an equation with respect to x and then solving the resulting equation for dy dx We begin by differentiating both sides of the given equation x - 20xy + y = 20. The beginning of this process proceeds as follows, using the sum and difference rules and the constant rule for differentiation. dx d dx (x - 20xy + y) dx d = -(20) dx dx +(y) -100 = (20) dx d(x)-20- d dx 1) + (y) = d(20) Submit Skip (you cannot come back)