Use the properties of real numbers to write the expression without parentheses.

2x ( a-b-2c + d/2)

(a) xa - xb - 2xc + xd
(b) 2xa - 2xb - xc + 4xd
(c) xa - 2xb - 4xc + xd
(d) 2xa - 2xb - 4xc + xd
(e) 2xa - xb - 4xc + xd/4


(d) 2xa - 2xb - 4xc + xd

Mathematics

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Perform the indicated operations, expressing the answer in simplest form with rationalized denominators. 

A.
B. 22
C.
D. 44

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Solve the problem.How many different three-digit numbers can be written using digits from the set {1, 2, 3, 4, 5} without any repeating digits?

A. 60 B. 20 C. 120 D. 10

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Find the product.6ax7(11ax7 + 10x3 + 5a)

A. 66ax7 + 60x3 + 30a B. 66a2x14 + 60ax10 C. 66a2x14 + 10x3 + 5a D. 66a2x14 + 60ax10 + 30a2x7

Mathematics

Evaluate the polynomial.-5x3 - 3x2 + 18, when x = -2

A. 64 B. 34 C. 46 D. 36

Mathematics