Mathematics
Senior High
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何故途中式1行目のような式に変形できるのですか??
(2) 4a²-(6-c)²
9
30 (1) 2629a2-462c2)
=26²(3a) 2-(2bc)2}
=2b23a+2bc)(3a-2bc)
3
(2)
132
2}
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すみません🙇♀️🙇♀️これが解答です