Jump to content

Why x^4+3x^2+2sqrt2 does not intersect at the x axis?

KFS
in Analysis and Calculus

Featured Replies

The expression has a positive constant while the terms dependent on x are functions of \(x^2\), so they are non-negative, thus the entire expression is always positive as a function of x.

Edited by mathematic
typo + latex

  • Author
27 minutes ago, mathematic said:

The expression has a positive constant while the terms dependent on x are functions of x2 , so they are non-negative, thus the entire expression is always positive as a function of x.

Thank, mathematic.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.