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

\[2x + 4 < 8 \space\vee\space -2x - 4 < 8\]
\[x < 2 \space\vee\space x > 6\]

Answer 2

x > –6 and x < 2

Answer 3

Sorry, last line missed the minus:
\[x < 2 \space\vee\space x > -6\]