Mathematics
Senior High
Solved
?の所の計算の方法?を教えて欲しいです。なんでそうなるのか、、、
x(y² −z²)+y(z² −x²)+z(x² - y²)=(z-y)x² + (y²-2²)x+yz²-y²z
Yx²+ (y-2) (J+2)x+4yz
Y(x²+J2) + (y-2) (J+2)y
-
= (2-y)x² +(y-2)(x+2)x+yz(z-v)
=
= (2-y) {x² = (y + 2)x+y²} <
= (z−y) (x−y)(x−z)
?
=(x−y)(y-z)(z-x)
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分かりました!ありがとうございます😭