展開する W(8,-1)X(11,-3)Y(7,-9)

解

展開する

W (8, - 1) X (11, - 3) Y (7, - 9)

8 W X Y, 11, 7, - 8 W X Y, 11, 9 - 8 W X Y, 3 \cdot 7, 8, 3 \cdot 9 - 1 \cdot 11 W X Y, 1 \cdot 3 \cdot 7, 1 \cdot 11, 1 \cdot 3 \cdot 9

解答ステップ

W (8, - 1) X (11, - 3) Y (7, - 9)

= (8, - 1) (11, - 3) (7, - 9) W X Y

拡張

(8, - 1) (11, - 3) : 8, 11, - 8, 3 - 1 \cdot 11, 1 \cdot 3

= W X Y (8, 11, - 8, 3 - 1 \cdot 11, 1 \cdot 3) (7, - 9)

拡張

(8, 11, - 8, 3 - 1 \cdot 11, 1 \cdot 3) (7, - 9) : 8, 11, 7, - 8, 11, 9 - 8, 3 \cdot 7, 8, 3 \cdot 9 - 1 \cdot 11, 1 \cdot 3 \cdot 7, 1 \cdot 11, 1 \cdot 3 \cdot 9

= W X Y (8, 11, 7, - 8, 11, 9 - 8, 3 \cdot 7, 8, 3 \cdot 9 - 1 \cdot 11, 1 \cdot 3 \cdot 7, 1 \cdot 11, 1 \cdot 3 \cdot 9)

拡張

W X Y (8, 11, 7, - 8, 11, 9 - 8, 3 \cdot 7, 8, 3 \cdot 9 - 1 \cdot 11, 1 \cdot 3 \cdot 7, 1 \cdot 11, 1 \cdot 3 \cdot 9) : 8 W X Y, 11, 7, - 8 W X Y, 11, 9 - 8 W X Y, 3 \cdot 7, 8, 3 \cdot 9 - 1 \cdot 11 W X Y, 1 \cdot 3 \cdot 7, 1 \cdot 11, 1 \cdot 3 \cdot 9

= 8 W X Y, 11, 7, - 8 W X Y, 11, 9 - 8 W X Y, 3 \cdot 7, 8, 3 \cdot 9 - 1 \cdot 11 W X Y, 1 \cdot 3 \cdot 7, 1 \cdot 11, 1 \cdot 3 \cdot 9