Homework SourseIdentify the solution set of the quadratic inequality x2 2x
Identify the solution set of the quadratic inequality -x^2 - 2x + 3 lessthanorequalto 0 by inspecting its graph. a. [-3, 1] b. [-3, infinity) c. (-infinity, 1] d. [-3, 1] e. (-infinity, -3] [1, infinity) ![Identify the solution set of the quadratic inequality -x^2 - 2x + 3 lessthanorequalto 0 by inspecting its graph. a. [-3, 1] b. [-3, infinity) c. (-infinity, 1]](/WebImages/31/identify-the-solution-set-of-the-quadratic-inequality-x2-2x-1088570-1761572780-0.webp "Identify the solution set of the quadratic inequality -x^2 - 2x + 3 lessthanorequalto 0 by inspecting its graph. a. [-3, 1] b. [-3, infinity) c. (-infinity, 1]")
Solution
From the graph we can say that the critical points are x=-3 and x=1. Here we have three regions (-inf,-3] , [-3,1],[1,inf)
if we check all these regions we get that the solution set is (-inf,-3]U [1,inf)
