- #1

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## Homework Statement

The image has the question I don't quite understand!

## Homework Equations

## The Attempt at a Solution

I understand how to get √(√2 - x) but I dont get how they end up with: 4√2 - x

?

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- Thread starter nukeman
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- #1

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The image has the question I don't quite understand!

I understand how to get √(√2 - x) but I dont get how they end up with: 4√2 - x

?

Last edited:

- #2

Mark44

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Your notation is incorrect. This is what you wrote:## Homework Statement

The image has the question I don't quite understand!

## Homework Equations

## The Attempt at a Solution

I understand how to get √(√2 - x) but I dont get how they end up with: 4√2 - x

$$ \sqrt{\sqrt{2} - x}$$

What you should have written is

$$ \sqrt{\sqrt{2-x}}$$

Without using LaTeX, as I did, you could have written √(√(2 - x))

Do you see the difference?

- #3

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Ah yea, I see the difference. Gotta start writing in latex!Your notation is incorrect. This is what you wrote:

$$ \sqrt{\sqrt{2} - x}$$

What you should have written is

$$ \sqrt{\sqrt{2-x}}$$

Without using LaTeX, as I did, you could have written √(√(2 - x))

Do you see the difference?

I still dont understand the problem as I pointed out in the picture. ?

- #4

Mark44

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Write the expression in exponent form rather than radical form.

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