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Neporo4naja [7]
3 years ago
9

Which of the following expressions is equivalent to the expression below?

Mathematics
2 answers:
Verizon [17]3 years ago
5 0
I am pretty sure the answer is A. 16x+2
pashok25 [27]3 years ago
5 0
The first thing we have to do is simplify the first equation by using the distributive property

4(5x)+4(2)+4(-x)

and that simplifies to 20x+8-4x
combine like terms 
16x+8
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Answer:

B and F

Step-by-step explanation:

Given

x² + 4x + 4 = 12 ( subtract 4 from both sides )

x² + 4x = 8

Using the method of completing the square to solve for x

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 8 + 4, that is

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x + 2 = ± \sqrt{12} ( subtract 2 from both sides )

x = ± \sqrt{12} - 2

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Hence

x = 2\sqrt{3} - 2 → B

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Answer:

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