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Lena [83]
3 years ago
10

If the expression 5+2x was evaluated for x=4 it’s value would be

Mathematics
2 answers:
marissa [1.9K]3 years ago
7 0
The answer to the question is going to be X=13.
iris [78.8K]3 years ago
5 0

Answer: 13

Step-by-step explanation:

5+2x

When x=4

5+2(4)

5+8

= 13

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I need to show how to find these solutions 1/4 and 3/4 by completing the square!
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Answer:

See explanation, and ask for more details if unclear!

Step-by-step explanation:

The perfect square of this equation is x^2-x+\frac{1}{4}, since the square would be (x-\frac{1}{2})^2. 1/4=4/16, meaning that you can set up the equation in the following way:

(x^2-x+\frac{1}{4})-\frac{1}{16}=0

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Take the square root of both sides:

x-\frac{1}{2}=\pm \frac{1}{4}

Add 1/2 to both sides:

x=\frac{1}{2}\pm \frac{1}{4}=\frac{3}{4}, \frac{1}{4}. Hope this helps!

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Answer:

Step-by-step explanation:

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