What is expand (4,-4,4)x(4,4,7) ?

The solution to expand (4,-4,4)x(4,4,7) is 4(4*4*7,,)x,-4(4*4*7,,)x,4

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expand (4,-4,4)x(4,4,7)

expand

(4, - 4, 4) x (4, 4, 7)

4 (4 \cdot 4 \cdot 7,,) x, - 4 (4 \cdot 4 \cdot 7,,) x, 4

Solution steps

(4, - 4, 4) x (4, 4, 7)

= (4, - 4 \cdot 4,) (4 \cdot 4 \cdot 7,,) x

Apply the distributive law:

a (b - c) = ab - a c

a = x (4, 4, 7), b = 4,, c = 4, 4

= x (4, 4, 7) \cdot 4, - x (4, 4, 7) \cdot 4, 4

= 4 (4 \cdot 4 \cdot 7,,) x, - 4 (4 \cdot 4 \cdot 7,,) x, 4

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What is expand (4,-4,4)x(4,4,7) ?
The solution to expand (4,-4,4)x(4,4,7) is 4(4*4*7,,)x,-4(4*4*7,,)x,4