Mathematics
Senior High
Solved
若干写真がボケてますが…
1枚目が解答で2枚目が回答なんですけど2枚目でも大丈夫ですか??
=3(x-2)(y-2)(-x-y+2z)
=3(y-2)(z-x)(x+y−2z)
=(x-2)(x-2)(-x-1+2z)
= < 3 (x-2)(y-2) (X + Y−22)
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