please answer my question please
Attachments:

Answers
Answered by
1
Answer:
7a²-3b²
(√7a)²-(√3a)²
(√7a+√3b)(√7a-√3b)
(l+m)² - 4lm
l²+2lm+m² - 4lm
l²+m²-2lm
(l-m)²
Similar questions