1. x^2 - 2xy + y^2
2. [x-y] [x+y]
3. x^2 + 2xy + y^2
4. x^2 + 2xy + y^2 + 2yz + z^2 + 2zx
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Verified answer
1. x^2 - 2xy + y^2
2. [x-y] [x+y]
3. x^2 + 2xy + y^2
4. x^2 + 2xy + y^2 + 2yz + z^2 + 2zx