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The value of (2a + b )^(2) - (2a - b) ^(...

The value of `(2a + b )^(2) - (2a - b) ^(2)` is:

A

8ab

B

`-8ab`

C

`8a^(2) + 2b^(2)`

D

`8a^(2)- 2b^(2)`

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The correct Answer is:
A
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