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jasenka [17]
2 years ago
13

Solve the following quadratic by

Mathematics
1 answer:
serious [3.7K]2 years ago
5 0

Answer:

x = -2+- sqrt(6)

Step-by-step explanation:

Using completing the square, let x^2+4x-2 = 0 and solve the steps to get the answerx^2 + 4x - 2 =0

add 2 to both sides to get x^2 + 4x = 2

then add 4 to both sides to get x^2 + 4x + 4 = 6

Get the left hand side to the square formate: (x+2)^2 = 6

then simplify x+2 = sqrt(6) or x+2 = -sqrt(6)

so x = sqrt(6) - 2 or x = -sqrt(6) -2

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Can a radical ever be rational? Glve examples. Justify your answer using complete sentences.
pochemuha

Answer:

Yes

Step-by-step explanation:

Yes, a radical can be a rational, this is because a radical indicates the square root of a number. An example of this is \sqrt{25} = 5.

4 0
4 years ago
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