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I think we will need more details, so, see you then.

I am afraid then that their answer is correct!

Bobbym :- I think I misled you. it should be -6x^2-(sqrt(7))(1-sqrt(7))x^2anonimnystefy - yes.Thanks for your help. I have to go now. I'll be back this evening.

So, I am guessing that you need to know why the remainder is 1-sqrt(7)x^2 in a certain polynomial long division?

I am getting

Yes. That's it.

Hi;

Sorry, I'm rushing. I have to take my wife to London in a minute! I've edited the original.

- -6x^2

What is that?

Ha! I can't get that to work either!As part of a polynomial long divisio is a subtraction -6x^2 - sqrt(7)(1-sqrt(7)x^2) the answer is (1-sqrt(7))x^2I don't understand!

Hi;I do not see any image.

Hi,In the attached image the highlighted subtraction has me stumped. I just can't see how the answer could be (1-sqrt(7))x^2.I would be very grateful if someone could explain how this is so.Thanks.