Question

(2a+b)2-(2a-b)2=_please answer it

Answer 1

Answer:

$(2a + b) {}^{2} - (2a - b) {}^{2} \\ 4a {}^{2} + b {}^{2} + 4ab - 4a {}^{2} - b {}^{2} + 4ab \\ 8ab$

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