1. (3x+4y)squared
2. (5a-7b)squared
3. (c squared +1)squared
4. (m cube-2n squared)
5. (3x-2y)(3x+2y)
6. (9m+10n)(9m-10n)
7. (5ab+2csquared)(5ab-2c squared)

Paki answer naman po uh Please need lang po.. God blesss