What is expand (1,2,3)x(-2,-2,4) ?

The solution to expand (1,2,3)x(-2,-2,4) is -2(1*2*3,,)x,-2(1*2*3,,)x,4

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expand (1,2,3)x(-2,-2,4)

expand

(1, 2, 3) x (- 2, - 2, 4)

- 2 (1 \cdot 2 \cdot 3,,) x, - 2 (1 \cdot 2 \cdot 3,,) x, 4

Solution steps

(1, 2, 3) x (- 2, - 2, 4)

= (1 \cdot 2 \cdot 3,,) (- 2, - 2 \cdot 4,) x

Apply the distributive law:

a (b - c) = ab - a c

a = (1, 2, 3) x, b = - 2,, c = 2, 4

= (1, 2, 3) x (- 2,) - (1, 2, 3) x \cdot 2, 4

Apply minus-plus rules

+ (- a) = - a

= - 2 (1 \cdot 2 \cdot 3,,) x, - 2 (1 \cdot 2 \cdot 3,,) x, 4

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What is expand (1,2,3)x(-2,-2,4) ?
The solution to expand (1,2,3)x(-2,-2,4) is -2(1*2*3,,)x,-2(1*2*3,,)x,4