Question

Which of the following is the solution set of -21xl <-8?

{x1-4>x>4]
{XIX<-4 or x 34)
{x1-4

Answer 1

x>4 or x <-4

Explanation:

-2|x| < -8

Divide each side by -2, remembering to flip the inequality

-2|x|/-2 > -8/-2

|x| >4

To get rid of the absolute values, we get 2 equations one positive and one negative

x>4 or x <-4