Solve the homogenous differential equation (x^2 – xy + y^2)dx + x^2dy = 0 by completing the steps below
a. define a new variable in terms of the existing variables. State the resulting differential equation
b. using part a, substitute into the given differential equation. Then simplify. Show your work.
c. Integrate the resulting equation. Show your work
d. Using the definition from part a, rewrite your answer in terms of the original variables. Show your work.