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n2-n-90=0



Chinman3000

Well-known member
Sep 28, 2011
1,269
Can you solve this?

Apparently lots of GCSE students cant and have been complaining their little hearts out about it being too tough for their exams.

Full story here - http://www.bbc.co.uk/news/education-33017299

WIthout being big headed am I the only one who thinks this is easy? Try not to post the answer....

Ps - n2 means n squared / to the power of 2.
 
Last edited:




Gwylan

Well-known member
Jul 5, 2003
31,827
Uffern
I think it's pretty easy too and I did my maths O level 42 years ago. Mrs Gwylan sat this paper yesterday and was pleased with herself for solving it as she heard some people moaning about it

EDIT: But the topic heading is wrong - it doesn't ask you to solve that equation
 






Yoda

English & European
Nope, not just you. Took me all of seconds to work it out.

Nearly put the answer so changed what I was going to post. :lolol:
 




hans kraay fan club

The voice of reason.
Helpful Moderator
Mar 16, 2005
62,759
Chandlers Ford
Can you solve this?

Apparently lots of GCSE students cant and have been complaining their little hearts out about it being too tough for their exams.

Full story here - http://www.bbc.co.uk/news/education-33017299



WIthout being big headed am I the only one who thinks this is easy? Try not to post the answer....

Ps - n2 means n squared / to the power of 2.

Took me about 20 seconds.
 


Bob!

Coffee Buyer
Jul 5, 2003
11,630
So, I think I've worked it out.
Where is the answer?
 








Nathan

Well-known member
Jan 8, 2010
3,788
I was expecting it to be harder than it was considering all the fuss about it. Not that difficult at all.
 


Guinness Boy

Tofu eating wokerati
Helpful Moderator
NSC Patron
Jul 23, 2003
37,339
Up and Coming Sunny Portslade
Yep got it - if it really is as easy as I think. Not a trick question?

*Goes off to look it up as paranoid*
 












hoveboyslim

Well-known member
Feb 7, 2004
573
Hove
Can you solve this?

Apparently lots of GCSE students cant and have been complaining their little hearts out about it being too tough for their exams.

Full story here - http://www.bbc.co.uk/news/education-33017299

WIthout being big headed am I the only one who thinks this is easy? Try not to post the answer....

Ps - n2 means n squared / to the power of 2.

Clearly not easy enough. I believe you would have got it wrong as you didn't read the question (classic school boy error).
The GCSE question didn't ask for equation to be solved. It asks for the workings out to arrive at that equation from the given text.
 




Herr Tubthumper

Well-known member
NSC Patron
Jul 11, 2003
62,683
The Fatherland
Took me about 15 seconds to spot one answer and about 1 minute to derive the other.

Edit: removed the value to avoid spoiler
 






StonehamPark

#Brighton-Nil
Oct 30, 2010
10,133
BC, Canada
Possible SPOILERS BELOW










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I'm not great at Maths, but isn't this a pretty easy one?

n2-n-90=0

Let's pretend N = 10

10 Squared = 100
100 - N (10) = 90
90 - 90 = 0
Therefore, N = 10

Right?
 


Guinness Boy

Tofu eating wokerati
Helpful Moderator
NSC Patron
Jul 23, 2003
37,339
Up and Coming Sunny Portslade
Yep got it - if it really is as easy as I think. Not a trick question?

*Goes off to look it up as paranoid*

That wasnt quite the question tho.

Clearly not easy enough. I believe you would have got it wrong as you didn't read the question (classic school boy error).
The GCSE question didn't ask for equation to be solved. It asks for the workings out to arrive at that equation from the given text.

The equation is bloody easy to solve but the actual question takes a bit of work. Not impossible though.
 


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