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vredina [299]
3 years ago
10

Simplify square root 20 + square root 80

Mathematics
1 answer:
timama [110]3 years ago
8 0

Answer:2\sqrt{5} \\+4\sqrt{5}



The square root of 20 simplified is 2\sqrt{5} \\

And the square root of 80 simplified is 4\sqrt{5}

So it would look like 2\sqrt{5} \\+4\sqrt{5}

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Nine times the sum of a number and 4 is 2
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Answer(s):

If you are asking for the equation, it's 9(x+4)=2

However, if you're asking for the value of x as well, it's -34/9

Step by Step:

1) First we must find the equation. In your question, the unknown number is x. Therefore we can know that "the sum of a number and 4" is (x+4). Since we are multiplying this sum by 9, we can put the 9 in front of this expression to multiply it--getting 9(x+4). And since we know it "is 2" we can say that 9(x+4)=2.

2) Now, we have to solve the equation, 9(x+4) = 2

3) We can start by distributing, 9x+36 = 2

4) Now let's move 36 to the right by subtracting from both sides, 9x = -34

5) To isolate x, let's divide both sides by 9, x = -34/9

6) Our fraction answer can't be simplified, so we get x = -34/9

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3 years ago
How would I find the value of X??
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Add 2 to both sides.

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x = 12
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bagirrra123 [75]

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