展开 (2,3)y(6,-5)

解答

展开

(2, 3) y (6, - 5)

6 (2 \cdot 3,) y, - 5 (2 \cdot 3,) y

求解步骤

(2, 3) y (6, - 5)

= (2 \cdot 3,) (6, - 5) y

使用分配律:

a (b - c) = ab - a c

a = (2, 3) y, b = 6,, c = 5

= (2, 3) y \cdot 6, - (2, 3) y \cdot 5

= 6 (2 \cdot 3,) y, - 5 (2 \cdot 3,) y

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