Mathematics
Senior High
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どこが間違っていますか?😿
答えは2(a+b)です
(^) (a²-l²)² + (at² -l=)²
= {(a^² = b^²=² ) + (a = = b^ ³ ) ² == 2 (aka fit) (a²-lis)
= (20²) ² - 2 {(a²³)² - (A²)^²}
= 2a-2(a+b)
*2a-2a + 2b
2b
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ありがとうござます!🙇♀️