Question

(x+y)2-(x-y)2 please fist
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Answer 1

Answer:

x2+y2+2ab - x2-y2+2ab

2ab+2ab

4ab is your answer

Answer 2

Answer:

$2(x + y) - 2(x - y)$

$2x + 2y - 2x + 2y = 4y$

that's is your answer