Mathematics
Senior High
Resolved
有人知道這種題目怎麼算嗎？
不是因為我覺得很奇怪，為什麼我算的不行，跟根差在哪？
2章 指數、對數
7.設9-16×3+27=0兩根為a、B,則a+=
解:
3 - t 70
2
+=16++27=0.
。
33
16156-108 167√148 16+/148 +6578
161056-108_161748
2
2
it
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