1) (2y^2-5xy)/(x^2-4y^2) - x/(2y-x) - y/(x+2y)
2) (y + 12)/(8y + 32) - (y + 4)/(8y - 32) + 9/(y^2 - 16)
1) (2y^2-5xy)/(x^2-4y^2) - x/(2y-x) - y/(x+2y)
2) (y + 12)/(8y + 32) - (y + 4)/(8y - 32) + 9/(y^2 - 16)