Question

y+3/2y+2 - y+1/2y-2 + 3/y^2-1

Answer 1

${y}^{2} - 1 = (y - 1)(y + 1) \( y - 1) times (y + 3) = {y}^{2} + 3y - y - 3 \ {y}^{2} + 2y - 3\ (y + 1)(y + 1) = {y}^{2} + 2y + 1$