# How do you solve #3w^4-27w^2>0# using a sign chart?

##### 2 Answers

#### Answer:

You can factorize into

#### Explanation:

Since

If

Which leaves us with

So either

graph{3x^4-27x^2 [-16.04, 16, -8.03, 8]}

#### Answer:

The answer is

#### Explanation:

Let

Let's do a sign chart

Therefore,