Question

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Answer 1

Answer:

(a+b) (a-b) = a²-b²

[2a+3b][2a-3b] = 2a²-2b²

4a²-4b² ans.

do the next in the same process: (a+b) (a-b) = a²-b²

Answer 2

Step-by-step explanation:

2a(2a-3b)+3b (2a-3b)

4a square -6ab+6ab-9b square

4s square-9b square