Mathematics
Junior High
Resolved
何故-X+4が-(X-4)となったのかが分かりません。
説明を含めての回答おねがいします。
(5) 5a (x-4)=x+4
=5a(x−4) — (x−4)
=5aM-M
=M(5a-1)
=(x-4) (5a-1)
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丁寧な説明ありがとうございます…!!
分かりやすいです!