Question

9(a+b) square-(a-b)square factorize

Answer 1

9(a+b)^ - (a-b)^

=9(a^ +b^ +2ab)-(a^+b^ - 2ab)

=9a^ +9b^ +18ab-a^ -b^ +2ab

=8a^ +8b^ +20ab

=4(2a^ +2b^ + 5ab)

Answer 2

Answer:

4(2a+b)(a+2b)

Step-by-step explanation:

Please find the attached image.