Mathematics
Junior High
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何度解いても計算が合いません!
誰かといてください!
49.
3x-34-3
z=1, y=-3のとき、次の式の値を求めよ。
3z²+2z+y³) −Xz²+3y² −y)
14
ニス2462-32+21
=1+6+27-6
7.28
54
27
-3×_9
427
12121
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