What is expand (3,7)y(-2,-1) ?

The solution to expand (3,7)y(-2,-1) is -2(3*7,)y,-1*(3*7,)y

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expand (3,7)y(-2,-1)

expand

(3, 7) y (- 2, - 1)

- 2 (3 \cdot 7,) y, - 1 \cdot (3 \cdot 7,) y

Solution steps

(3, 7) y (- 2, - 1)

= (3 \cdot 7,) (- 2, - 1) y

Apply the distributive law:

a (b - c) = ab - a c

a = (3, 7) y, b = - 2,, c = 1

= (3, 7) y (- 2,) - (3, 7) y \cdot 1

Apply minus-plus rules

+ (- a) = - a

= - 2 (3 \cdot 7,) y, - 1 \cdot (3 \cdot 7,) y

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What is expand (3,7)y(-2,-1) ?
The solution to expand (3,7)y(-2,-1) is -2(3*7,)y,-1*(3*7,)y