Mathematics
Senior High
Solved
2x^2-xy-y^2-7x+y+6
この式の途中で使われている斜め掛けが全然できません。解説お願いします。
X
-(y-2)
-2xy+4x
27
xy-3x
(y-3
Answers
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理解できました！回答ありがとうございました！