Mathematics
Junior High
この問題の解き方教えてください。
⑤ 設問⑤のように乗法公式3を逆に使って, 次の式を因数分解せよ。
(1) 4x²-36xy+81y2
(3) -4a2+4ab-62
(2) a2-20ab+10062
(4) 9x2b-6xyb+y2b
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