Question

What is the solution set of |2x + 4| < 8?

x > –6 and x < 2

x > –4 and x < 4

x < –6 and x > 2

x < –4 and x > 4

Answer 1

|2x + 4| < 8
=>2x+4<8
=>2x<4
=>x<2

|2x + 4| < 8
=>-(2x+4)<8
=>-2x-4<8
=>-2x<12
=>x<-6


So x < –6 and x > 2

Answer 2

Thanks for showing your wrok

Answer 3

:)