# Math Help - solve this trig equation!!!!!!!!

1. ## solve this trig equation!!!!!!!!

(tan x)^3 + (tan x)^2 - 3(tan x) - 3 = 0

2. ## Re: solve this trig equation!!!!!!!!

Originally Posted by jennifernghi
(tan x)^3 + (tan x)^2 - 3(tan x) - 3 = 0
What have you tried so far?

-Dan

3. ## Re: solve this trig equation!!!!!!!!

Hello, Jennifer!

$\tan^3\!x + \tan^2\!x - 3\tan x - 3 \:=\: 0$

Factor: . $\tan^2\!x(\tan x + 1) - 3(\tan x + 1) \:=\:0$

Factor: . $(\tan x + 1)(\tan^2x-3) \:=\:0$

Can you continue?