Mathematics
Senior High
添付した画像に書いてある問題の答えってわかる方いらっしゃいますか？
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(②) 7 = 2z2+16z+28 (りー2z2ー8z二14)
記うキタ>+14
ヤてぇtg/-ルて
= (xtY)-<:
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