The solution set of inequality (xsquare-2x-3) (x + 1) 0 is

The solution set of inequality (xsquare-2x-3) (x + 1) 0 is

1. Let (xsquare - 2x - 3) be less than zero (x + 1) be greater than zero, so the solution is x less than 3 and greater than - 12; let (xsquare - 2x - 3) be greater than zero (x + 1) be less than zero, so the solution is x less than - 1