- #1

nukeman

- 655

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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 don't get how they end up with: 4√2 - x

?

Last edited:

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- Thread starter nukeman
- Start date

- #1

nukeman

- 655

- 0

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

I understand how to get √(√2 - x) but I don't get how they end up with: 4√2 - x

?

Last edited:

- #2

Mark44

Mentor

- 36,709

- 8,708

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 don't 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

nukeman

- 655

- 0

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?

Ah yea, I see the difference. Gotta start writing in latex!

I still don't understand the problem as I pointed out in the picture. ?

- #4

Mark44

Mentor

- 36,709

- 8,708

Write the expression in exponent form rather than radical form.

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