Mathematics
Senior High
Resolved
左が答えで、右が自分で解いたものですが、どこで間違えているか教えていただきたいです🙇🏻♀️!
(3) x6-y=(x³)² - (y³)²
= (x³+y³)(x³-y³)
=(x+y)(x²-xy+y²)(x−y)(x²+xy+y²)
=(x+y)(x−y)(x²+ xy + y²)(x² - xy + y²)
(x+y)(x− y)(x² + xy + y²)(x² - xy+ y²)
x3+2x² +
13
x-y=(x²)-(42)3
=
=(ズード) (+)
x+y(x-g)(x+x+y+y*)
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理解出来ました✨️ありがとうございます🙇🏻♀️!