Implicit Differentiation 89577F
1. **State the problem:** Differentiate implicitly the equation $$x^3 + y^3 = 6xy$$ with respect to $x$ to find $\frac{dy}{dx}$.
2. **Recall the rules:**
- Use the power rule: $$\frac{d}{dx}[x^n] = nx^{n-1}$$.
- Use implicit differentiation: treat $y$ as a function of $x$, so $$\frac{d}{dx}[y^3] = 3y^2 \frac{dy}{dx}$$.
- Use the product rule for $$6xy$$: $$\frac{d}{dx}[6xy] = 6\left(y + x\frac{dy}{dx}\right)$$.
3. **Differentiate both sides:**
$$\frac{d}{dx}[x^3] + \frac{d}{dx}[y^3] = \frac{d}{dx}[6xy]$$
$$3x^2 + 3y^2 \frac{dy}{dx} = 6y + 6x \frac{dy}{dx}$$
4. **Group terms with $$\frac{dy}{dx}$$ on one side:**
$$3y^2 \frac{dy}{dx} - 6x \frac{dy}{dx} = 6y - 3x^2$$
5. **Factor out $$\frac{dy}{dx}$$:**
$$\frac{dy}{dx}(3y^2 - 6x) = 6y - 3x^2$$
6. **Solve for $$\frac{dy}{dx}$$:**
$$\frac{dy}{dx} = \frac{6y - 3x^2}{3y^2 - 6x}$$
7. **Simplify the fraction by dividing numerator and denominator by 3:**
$$\frac{dy}{dx} = \frac{2y - x^2}{y^2 - 2x}$$
**Final answer:**
$$\boxed{\frac{dy}{dx} = \frac{2y - x^2}{y^2 - 2x}}$$