Question

Which of the following is the solution set of -2|x| < -8


{x | -4 > x > 4}
{x | -4 < x < 4}
{x | x < -4 or x > 4}

Answer 1

Moo. I'm a cow.

Do you know the first step?

Answer 2

meow ima cat um no not really

Answer 3

???????????????

Answer 4

divide by -2
enequality sign changes
\[\left| x \right|>\frac{ -8 }{-2 },or \left| x \right|>4\]
\[\left| x \right|>a means x <-a and x > a\]

Answer 5

use or in place of and

Answer 6

\(|\color{red}{whatever}|< \color{blue}{something} \implies -\color{blue}{something} < \color{red}{whatever} < +\color{blue}{something}\)