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alina1380 [7]
2 years ago
5

Find the sum of (x + 5) and (2x + 3) * A) 9x + 1 B) 5x + 2 C) 8x + 3 D) 3x + 8

Mathematics
2 answers:
KatRina [158]2 years ago
7 0

Answer:

D

Step-by-step explanation:

We know that we are adding the two expressions because the question says "sum" which means that we need to add. Let's combine like terms. We know that x + 2x = 3x and 5 + 3 = 8 so the answer is 3x + 8.

erastovalidia [21]2 years ago
4 0

Answer:

D. 3x+8

Step-by-step explanation:

We want to find the sum of (x+5) and (2x+3). Sum means addition, so we must add the 2 expressions.

(x+5)+(2x+3)

Now, we must simplify by combining like terms.

First, combine the terms with variables.

(x+2x) + (5+3)

3x + (5+3)

Next, add the constants, or terms without variables.

3x+ 8

The sum of (x+5) and (2x+3) is 3x+8. This makes choice D the correct answer.

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Answer:

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Step-by-step explanation:

2x^2-4x-9=29

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Divide by 2

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x-1 =  ±sqrt(20)

Add 1 to each side

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x = 1 ±sqrt(20)

Simplifying the square root of 20

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Hope this helps! :)

Please mark me the Brainliest!

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