pls expand. (2a+3b)(2a-3b)
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Answer:
4a^2-9b^2
Step-by-step explanation:
(2a+3b)(2a-3b)
so,
- 2a(2a-3b) + 3b(2a-3b)
- 4a^2 -6ab +6ab -9b^2
Here,-6ab and +6ab will get cancelled
because both r equal,but they r opposite to each other......
so final ans 4a^2-9b^2
hope it helps!
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