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# fp2 question

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1. fp2 question

im just wandering, when i get to the line |w-2 | = | -1+2w |

cant i just square everything, getting

w^2 +4 = 1 + 4w^2

3 = 3w^2

1 = w^2

root,and put modulus on both sides.. 1 = | w |
2. Re: fp2 question
Squaring each term isn't a legitimate way of removing the modulus, this method works by luck.
Last edited by snow leopard; 17-06-2012 at 20:05.
3. Re: fp2 question
If you think about it, squaring each term isn't equivalent to squaring the real and complex parts.

For example:

Like snow said, you got lucky.

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Last updated: June 17, 2012
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