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Lady_Fox [76]
2 years ago
13

Factor the four-term polynomial ab + ac - 4b - 4c

Mathematics
1 answer:
Troyanec [42]2 years ago
5 0
A b + a c - 4 b - 4 c = a ( b + c ) - 4 ( b + c ) = 
= (b + c) (a - 4)
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Let A {x ∈ N : 3 ≤ x ≤ 13}, B {x ∈ N : x is even}, and C {x ∈ N : x is odd}.
murzikaleks [220]

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From the given information, we have

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A = {3,4,5,6,7,8,9,10,11,12,13}

B = {2,4,6,8,10,12,14,..........,....}

C = {1,3,5,7,9,11,13,15,17,...........,}

(a) A∩B = {4,6,8,10,12}

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(d) B∪C = { x ∈ N : x is even and x ∈ N : x is odd}

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A = {2,3,5,7,8} and B = {3,5}

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