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

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

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

expand

(- 4, - 1) u (- 1, 2)

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

Solution steps

(- 4, - 1) u (- 1, 2)

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

Apply the distributive law:

a (b - c) = ab - a c

a = u (- 1, 2), b = - 4,, c = 1

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

Apply minus-plus rules

+ (- a) = - a

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

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