Solve the inequality

(x^2 +1)( x + 4) (x - 3) > 0

Write your answer as an interval or union of intervals.

Hello!

x^2+1 is always >0, so we can ignore this factor. The remaining part >0 when both factors x+4 and x-3 are positive (x>3) or both negative (x<-4).

The answer: x in (-infinity, -4) U (3, +infinity).

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