Mathematics
Senior High
(3)の解き方教えて頂きたいです。
は抽 23zエ5王g(z填3)十0(x一1)
*(2) 2 3ニー 0(<エリ土6
2(2ァ一1)十0(x寺2)一4z十7王0
*(4) gX(205E1) px(ァ一1)二c(z寺1)(x一1)三2x"十3一}
(5) x9三g(ァ十1)?十6(z填1)*十 c(z填1)土
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