How do you simplify -3x^3+5x+2/x^2-1

(-3x³ + 5x + 2) / (x² - 1)

=  [ (x + 1)(-3x² + 3x + 2) ] / [ (x + 1)(x - 1) ]

=  (-3x² + 3x + 2) / (x - 1)