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# Edexcel C2 20th May 2015 *Official Thread* watch

1. (Original post by LordWillcox)
£480something? I cant really remember, I remember it being in the 400s
483 quid to nearest pound????

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2. (Original post by tayloryeah)
Ah flip I forgot to add the second value
Dw I know what I did.. Damn!

I forgot to add the second value! I only got 192
3. (Original post by vuvuzela)
483 quid to nearest pound????

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quite possibly
4. Started fine, got stupidly hard in the middle then the last question was pretty easy.
5. fml feel like **** such a failure
6. (Original post by 12345678zzz)

can somebody check with me?
Yeah I got all of them, althoguh I rounded the angles bit to 1 dp since it didn't specify
7. (Original post by you all bent)
lol dont cry m8
Im not crying, i know I did fairly well, just not being annoying like you.
8. (Original post by vuvuzela)
483 quid to nearest pound????

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yessssssssssssssssssssssssssssss ssssssssssssssssssssssssssssssss ssssssssssssssssssssssssssssssss ssssssssssssssssssssssssssssssss ssssssssssssssssssssssssssssssss ssssssssssssssssssssssssssssssss ssssssssss. Omg i thought i ****ed this paper up so bad!
9. (Original post by edwardsheeran)
Is it right if I got (2x-1)(3x+12)(x-4) for the factorising? I know the 3 isn't outside the bracket but idk if that's even the same
i got (2x+1)(Root3 x -4)(Root3 x+4) don't no how to show square roots lol. Or something like that XD
10. (Original post by TheAstrocist)
Was n not 27 because it was n < 27.....? 😕

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N = 28

It sounds like you forgot to flip the inequalities sign because you had to divide by a log that was between 1 and -1 and therefore was negative

Don't worry though, it'll probably be like 1 mark
11. (Original post by hum1)
(2x-1)(3x+12)(x-4) exactly what i got...
I wrote (2x-1)(3x+12)(x-4)
And also
I wrote (2x-1)(x+4)(x-4) without adding the '3'.

Would I lose a mark or would they ignore the last one?

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12. What was the answer to the area of the blade one?

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13. (Original post by 12345678zzz)

can somebody check with me?
yes I agree with all of those, although I put the trig ones to 1dp rather than 3sf but doubt it matters
14. (Original post by 12345678zzz)
checked with my friends and decide to put these down before I forget...

- a= -48, b = -96 (might have mixed them up, can't remember)
- Factorise f(x) = 3(2x+1)(x-4)(x+4)
- common ratio: 8/9, first term = 18, n = 28
- Area of graph = 226 sq. units
- Perimeter = 40.9 cm; Area = 96.7 cm^2
- the minimum cost for the cylinder is 483 pounds
- Angles from tan: pi/9, 4pi/9, 7pi/9; angles from cos: 0. 139, 221 (3 s.f.)

Hope they are correct! Waiting for Arsey's unofficial mark scheme though hahahaaa
Got the same as you for all of them except the factorising question, which I'm pretty sure I got wrong.
15. (Original post by Mattematics)
I put (2x+1)(3x-24)(x+6) or something to that effect

God I hate factorising polynomials like that.
I struggle for along time to factorise that thing tbh
Tried the division thing but it didnt work out for me so I have to factories step by step using x=-1/2
16. (Original post by f.loco)

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*unofficial, lol
17. (Original post by prepdream)
I struggle for along time to factorise that thing tbh
Tried the division thing but it didnt work out for me so I have to factories step by step using x=-1/2
That's what I tried to do

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18. How did everyone find the exam?
Personally, I thought it was terrible.
19. (Original post by Boundless_x)
Ooo a fellow anime fan!
mor like a fellow nerd am i right boys?? hueheuhuehueheuhe
20. I felt like I should know the methods to solve all those questions, I honestly do.
Let me give you a tip - good sleep is a NECESSITY. I had really bad and broken sleep last night, probably coming down with something. Absolutely exhausted this morning and looking at the paper made me want to cry - mind was so fogged up and i literally forgot methods to everything I've done for the past year.

Made worse by the fact that I was relying on this paper to up-me-up from the horrendous C1 paper. Edexcel have really messed us (imo) over this year - none of the past papers i've done (C1 + C2) have been this gruelling. Ugh

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