Yes, you can delete applications from Launchpad on your MacBook.
1. Open Launchpad from your 'Dock' or by searching for it in Spotlight.
2. Find the application you want to delete.
3. Click and hold on the application icon until it starts shaking.
4. Click the 'X' button that appears on the corner of the application's icon to delete it. You will be prompted to confirm the deletion.