Mathematics
Junior High

解き方が分かりません。

【答え】
(3)x‎‎‎²+2xy+y‎‎‎²-25
(4)a‎‎‎²-b‎‎‎²+2b-1

(3) a²-4a+4-62 +of t₂ 19 (4) xy-y-2x+2
因数分解

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