x^4-4x^3+2x^2-4x+1 = 0 It can be written as ((x-4) x+1) (x^2+1) = 0

After solving the solution set is :

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up