Question

Explain why the equation 3 |3x| = 27 has 2 solutions {-3,3}

Answer 1

this is beacuse \(|3x|\) can be written as \(\pm3x\)

Answer 2

All negative numbers inserted into a absolute function will become positive. so |-3|=3 |3|=3

Answer 3

|-3|=3 |3|=3

Answer 4

This is how a graph looks like of f(x)=|x| if you even care :P