Mathematics
Senior High
Resolved

これって合ってますか??

解答と順番が違うんですけど、、、

順番は関係ありますか?

(6)(x+y+z)(x+y-z) {(x+g)+2}{(x+)-2} (x+1)-2 x² + 2 2 Y + y² - 2²
(6) x²+ y²-22+2xy

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