Mathematics
Senior High
Solved
(2)の証明の書き方がよくわかりません、、これで大丈夫なのでしょうか🤔？
235 (1) a¹-b¹ = (a−b) (a³+ a²b+ab²+b³)
*(2) (a²+4b²) (c²
+4d²)=(ac-4bd)²+4(ad+bc)²
+30<0
pf)
2
2
(2) (a²+ 46²) (C²44d²) = (ac-4bd ) ² + 4 (ad + bc) ²
[re
(*)
(*) AFFID = A²C² + 4a²d² + 4b²c²+. 160²d/²
(*) 07 Fain = a²c²-8abcd + 160²d²+ 4a²d²+ 8abcd + 40²c²
a²c² +9a²d² + 46²c² + (6b²³d² = (132)
(左辺)
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わあよかったです🥹ありがとうございます！！