Mathematics
Senior High
Resolved
(１)から（5）はこれで合ってますか？
練習次の式を展開せよ。
目標 練習
15
(1) (2x-3) (2x+1) (2) (2x-3)(2x+3)
(4) (x+8y)(x-4y) (5) (2a-b)2
(3) (x+8y) ²
(6) (a-5b) (5a-b)
練15(
15114x4x-3(2)4x²-x-9
13 x ² + 16x9 +86y² (4) X² + 4xy = 325²
(5)
49²-4ab+b² (650²-260b+56
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なるほど！！ありがとうございます