Mathematics
Junior High
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ㆍ数学￤式の展開
どこが間違っているか教えてほしいです！
2
(2)
A
(x²+2x-4)(x²-2x-4)
= (X² + A) (X² - A)
9c²-A²
2④-(2x-4)
x²² (4 x² + 6x +16)
(1
210
A
2
= x² - 4x + 16x-16
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