Question

121a square b square -81 c square d square ​

Answer 1

Answer:

ruddudhduusisi

Step-by-step explanation:

ududikememsmsmms

Answer 2

Answer:

121a²b² - 81c²d²

(11ab)² - (9cd)²

so, answer will be-

(11ab + 9cd)(11ab - 9cd)

hope it will help you