1. (b-1)^2
2. (2+n)^2
3. (x-7)^2
4. (2a+b)^2
5. (3x-4y)^2
6. (a^3-1)^2
7. (6a^3-7b^5)^2
8. (9x^2*y^4-2z^6)^2
1. (b-1)^2
2. (2+n)^2
3. (x-7)^2
4. (2a+b)^2
5. (3x-4y)^2
6. (a^3-1)^2
7. (6a^3-7b^5)^2
8. (9x^2*y^4-2z^6)^2