Ah damn.(Original post by Chittesh14)
Erm, well I can't really factorise it so let's just go with my favourite method lol.
Well, you can't complete the square either .
Well, the quadratic formula doesn't work either wtf lol, this equation has no solutions.
so there are no real roots.
Apparently, the solutions (roots) are imaginary lol so the graph does not cross the xaxis.
I tried WolframAlpha and it says 1 + i and 1  i.
I don't know what that means lol :/ sorry I can't help :'(.
Btw, what year are you in?  just wonderingSpoiler:ShowIn all honesty, I knew the solutions. I just wanted to see how you would react to it.
C2  Logarithms
Announcements  Posted on  

Last day to win £100 of Amazon vouchers  don't miss out! Take our quick survey to enter  24102016 

 Follow
 41
 25062016 20:45
Post rating:1 
 Follow
 42
 25062016 20:46
(Original post by RDKGames)
Ah damn.Spoiler:ShowIn all honesty, I knew the solutions. I just wanted to see how you would react to it. 
 Follow
 43
 25062016 20:48
(Original post by Chittesh14)
Lol, I thought so. Cheeky. 
 Follow
 44
 25062016 21:04
(Original post by RDKGames)
To answer your question, I'm on the verge of finishing Y13 with 2 exams left. Taken Maths and Further Maths.
How did the previous exams go? 
 Follow
 45
 25062016 21:08
Well I have 10 exams overall this summer, all maths incl. 3 retakes. All went well except maybe C3, and I had my worst exam ever in maths with Mechanics 3 this year. I'm yet to find a single person who enjoyed that exam. Otherwise, they're not too bad and if I'm lucky Loughborough might even accept me with my grades being one lower than expected xD 
 Follow
 46
 25062016 21:13
(Original post by RDKGames)
Thanks! ;D
Well I have 10 exams overall this summer, all maths incl. 3 retakes. All went well except maybe C3, and I had my worst exam ever in maths with Mechanics 3 this year. I'm yet to find a single person who enjoyed that exam. Otherwise, they're not too bad and if I'm lucky Loughborough might even accept me with my grades being one lower than expected xD 
 Follow
 47
 25062016 21:17
(Original post by Chittesh14)
Wow nice man! Quite a lot of exams :P. If you don't mind me asking, what were your 3 retakes and what grades did you get at AS in your subjects? What is your offer for Loughborough btw? And dam, sorry about M3  I don't think I know anybody doing it lol in my school, except one person maybe. Well, really I think you'd have done good in all  but the extra 3 retakes might've put a bit more pressure so you've actually done really good :P
Also retakes are absolutely no pressure really, C1 and FP1 were naturally covered as I worked through C3 and C4 as well as FP2 and FP4. Stats was just reminding myself how to use the calculator correctly xDLast edited by RDKGames; 25062016 at 21:20. 
 Follow
 48
 25062016 21:22
(Original post by RDKGames)
My retakes were Core 1 (orginally B), FP1 (originally B) and S1 (originally D) and this year I think they went far better so I can balance out my AS Further Maths at an A. My Loughborough offer is AAA for studying Mathematics but at this rate I should be getting A*A*B, if not Loughborough then I'm off to Leicester aha. I don't mind M3 as I'm doing an extra module which would replace it (which is D2) given that it goes better than M3, which most likely will lol but I still need to do good in it xD
Also retakes are absolutely no pressure really, C1 and FP1 were naturally covered as I worked through C3 and C4 as well as FP2 and FP4. Stats was just reminding myself how to use the calculator correctly xD 
 Follow
 49
 25062016 21:30
(Original post by Chittesh14)
Np man, what do you want to do in university  if Maths then don't worry, you got a B but you're actually 2 grades higher lol. Also, universities will probably only care about Maths and FM if you want to do Maths and I'm thinking that the 2 A*s are in those two subjects, so don't worry :P. Oh lol and wow FP4 wtf lol that's some tough ass module probably.
FP4 is decent; it deals with equations of planes, lines and their transformations using matrices all in 3 dimensional space. I enjoyed it as I'm good at visualising that stuff, but FM papers usually just throw one or two awkward questions which I get stuck on and lose some marks that lower my UMS lol, but these are the exact same questions I'm counting on to lower the grade boundaries. 
 Follow
 50
 25062016 21:42
(Original post by RDKGames)
Nah, the B is in FM probably, I'm just relying for some nice grade boundaries in August xD
FP4 is decent; it deals with equations of planes, lines and their transformations using matrices all in 3 dimensional space. I enjoyed it as I'm good at visualising that stuff, but FM papers usually just throw one or two awkward questions which I get stuck on and lose some marks that lower my UMS lol, but these are the exact same questions I'm counting on to lower the grade boundaries. 
 Follow
 51
 26062016 15:13
(Original post by SeanFM)
x(Original post by RDKGames)
x
I was just wondering how I would approach and solve these questions.
Spoiler:Show
I've actually solved them, but I don't even know how lol. I'll post my working out in a bit.Last edited by Chittesh14; 26062016 at 15:15. 
 Follow
 52
 26062016 16:32
(Original post by Chittesh14)
Hey guys.
I was just wondering how I would approach and solve these questions.
Spoiler:Show
I've actually solved them, but I don't even know how lol. I'll post my working out in a bit.
If P(x) is a polynomial, then the statement "(x1) is a factor of P(x)" means that we can write
P(x) = (x1)Q(x)
where Q(x) is some other polynomial. So if we substitute x = 1 into both sides we get
P(1) = 0(Q(1)) = 0
i.e. if we substitute x = 1 into P(x) we get the answer 0. You questions 8, 9 and 10 are direct applications of this principle  for Q10 you just need to substitute in 2 values of x because you are given 2 linear factors and you have 2 unknowns to find. 
 Follow
 53
 26062016 16:42
(Original post by Chittesh14)
Hey guys.I was just wondering how I would approach and solve these questions.I've actually solved them, but I don't even know how lol. I'll post my working out in a bit.
(Original post by davros)
These are very standard AS level questions  you should really have numerous examples in your textbook!
If P(x) is a polynomial, then the statement "(x1) is a factor of P(x)" means that we can write
P(x) = (x1)Q(x)
where Q(x) is some other polynomial. So if we substitute x = 1 into both sides we get
P(1) = 0(Q(1)) = 0
i.e. if we substitute x = 1 into P(x) we get the answer 0. You questions 8, 9 and 10 are direct applications of this principle  for Q10 you just need to substitute in 2 values of x because you are given 2 linear factors and you have 2 unknowns to find. 
 Follow
 54
 26062016 16:42
(Original post by davros)
These are very standard AS level questions  you should really have numerous examples in your textbook!
If P(x) is a polynomial, then the statement "(x1) is a factor of P(x)" means that we can write
P(x) = (x1)Q(x)
where Q(x) is some other polynomial. So if we substitute x = 1 into both sides we get
P(1) = 0(Q(1)) = 0
i.e. if we substitute x = 1 into P(x) we get the answer 0. You questions 8, 9 and 10 are direct applications of this principle  for Q10 you just need to substitute in 2 values of x because you are given 2 linear factors and you have 2 unknowns to find.
Does my method work though lol somehow I got to a few answers, but it was very silly and too long compared to the textbook method.
Thanks davros ! 
 Follow
 55
 26062016 16:43
(Original post by RDKGames)
Exactly what this guy said. Just sub in the values as you know they are factors of p(x)=0. Q10 should lead you to two equations with two unknowns hence the simultaneous equations. 
 Follow
 56
 26062016 16:47
(Original post by Chittesh14)
Sorry, I forgot about this question lol. Oh yeah, there is an example in the book (only 1)  I think I just missed it :/.
Does my method work though lol somehow I got to a few answers, but it was very silly and too long compared to the textbook method.
Thanks davros ! 
 Follow
 57
 26062016 16:49
(Original post by RDKGames)
Is that a question mark in your working out for Q10? Lol restrain from using them, it's what we have letters for. :P 
 Follow
 58
 26062016 20:22

 Follow
 59
 26062016 20:39
Well, it might do so you're lucky  will attempt this one later. 
 Follow
 60
 26062016 21:12
(Original post by Chittesh14)
I'm here to ask questions lol, not answer questions...... unless it relates to what I'm currently learning.
Well, it might do so you're lucky  will attempt this one later.
Write a reply…
Reply
Submit reply
Register
Thanks for posting! You just need to create an account in order to submit the post Already a member? Sign in
Oops, something wasn't right
please check the following:
Sign in
Not got an account? Sign up now
Updated: July 21, 2016
Share this discussion:
Tweet
TSR Support Team
We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.