Question content area left Part 1 Solve the inequality f(x)greater than or equals0, where f left parenthesis x right parenthesis equals left parenthesis x plus 1 right parenthesis left parenthesis x minus 3 right parenthesis squared comma by using the graph of the function. -6 -4 -2 2 4 6 -50 -40 -30 -20 -10 10 20 30 x y A coordinate system has a horizontal x-axis labeled from negative 6 to 6 in increments of 1 and a vertical y-axis labeled from negative 50 to 35 in increments of 5. Upper A curve rises from left to right passing through the point left parenthesis negative 1 comma 0 right parenthesis to the point left parenthesis 0.3 comma 9.5 right parenthesis . The curve then falls from left to right to the point left parenthesis 3 comma 0 right parenthesis where it again rises from left to right. All coordinates are approximate. . . . Question content area right Part 1 The solution set for f(x)greater than or equals0 is enter your response here. Type your answer in interval notation.)