What is expand (1,4)y(2,-4) ?

The solution to expand (1,4)y(2,-4) is 2(1*4,)y,-4(1*4,)y

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expand (1,4)y(2,-4)

expand

(1, 4) y (2, - 4)

2 (1 \cdot 4,) y, - 4 (1 \cdot 4,) y

Solution steps

(1, 4) y (2, - 4)

= (1 \cdot 4,) (2, - 4) y

Apply the distributive law:

a (b - c) = ab - a c

a = (1, 4) y, b = 2,, c = 4

= (1, 4) y \cdot 2, - (1, 4) y \cdot 4

= 2 (1 \cdot 4,) y, - 4 (1 \cdot 4,) y

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What is expand (1,4)y(2,-4) ?
The solution to expand (1,4)y(2,-4) is 2(1*4,)y,-4(1*4,)y